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* drivers/gpu/drm/vboxvideo/vbox_main.c:146 vbox_hw_init() warn: 'vbox->guest_heap' not released on lines: 126.
@ 2020-10-02 10:31 kernel test robot
  0 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2020-10-02 10:31 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 8631 bytes --]

CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Daniel Vetter <daniel.vetter@ffwll.ch>
CC: Hans de Goede <hdegoede@redhat.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   472e5b056f000a778abb41f1e443de58eb259783
commit: 8558de401b5fbbfb1df96d6986bba3c79cd47401 drm/vboxvideo: use managed pci functions
date:   5 months ago
:::::: branch date: 8 hours ago
:::::: commit date: 5 months ago
config: i386-randconfig-m021-20201002 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/gpu/drm/vboxvideo/vbox_main.c:146 vbox_hw_init() warn: 'vbox->guest_heap' not released on lines: 126.

vim +146 drivers/gpu/drm/vboxvideo/vbox_main.c

dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  106  
d46709094deb69 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2018-09-18  107  int vbox_hw_init(struct vbox_private *vbox)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  108  {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  109  	int ret = -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  110  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  111  	vbox->full_vram_size = inl(VBE_DISPI_IOPORT_DATA);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  112  	vbox->any_pitch = vbox_check_supported(VBE_DISPI_ID_ANYX);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  113  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  114  	DRM_INFO("VRAM %08x\n", vbox->full_vram_size);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  115  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  116  	/* Map guest-heap at end of vram */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  117  	vbox->guest_heap =
01648890f336a3 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2018-09-18  118  	    pci_iomap_range(vbox->ddev.pdev, 0, GUEST_HEAP_OFFSET(vbox),
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  119  			    GUEST_HEAP_SIZE);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  120  	if (!vbox->guest_heap)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  121  		return -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  122  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  123  	/* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  124  	vbox->guest_pool = gen_pool_create(4, -1);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  125  	if (!vbox->guest_pool)
8558de401b5fbb drivers/gpu/drm/vboxvideo/vbox_main.c Daniel Vetter 2020-04-15  126  		return -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  127  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  128  	ret = gen_pool_add_virt(vbox->guest_pool,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  129  				(unsigned long)vbox->guest_heap,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  130  				GUEST_HEAP_OFFSET(vbox),
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  131  				GUEST_HEAP_USABLE_SIZE, -1);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  132  	if (ret)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  133  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  134  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  135  	ret = hgsmi_test_query_conf(vbox->guest_pool);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  136  	if (ret) {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  137  		DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  138  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  139  	}
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  140  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  141  	/* Reduce available VRAM size to reflect the guest heap. */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  142  	vbox->available_vram_size = GUEST_HEAP_OFFSET(vbox);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  143  	/* Linux drm represents monitors as a 32-bit array. */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  144  	hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_MONITOR_COUNT,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  145  			 &vbox->num_crtcs);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06 @146  	vbox->num_crtcs = clamp_t(u32, vbox->num_crtcs, 1, VBOX_MAX_SCREENS);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  147  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  148  	if (!have_hgsmi_mode_hints(vbox)) {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  149  		ret = -ENOTSUPP;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  150  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  151  	}
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  152  
01648890f336a3 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2018-09-18  153  	vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  154  					     sizeof(struct vbva_modehint),
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  155  					     GFP_KERNEL);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  156  	if (!vbox->last_mode_hints) {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  157  		ret = -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  158  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  159  	}
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  160  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  161  	ret = vbox_accel_init(vbox);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  162  	if (ret)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  163  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  164  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  165  	return 0;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  166  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  167  err_destroy_guest_pool:
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  168  	gen_pool_destroy(vbox->guest_pool);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  169  	return ret;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  170  }
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  171  

:::::: The code at line 146 was first introduced by commit
:::::: dd55d44f408419278c00887bfcb2261d0caae350 staging: vboxvideo: Add vboxvideo to drivers/staging

:::::: TO: Hans de Goede <hdegoede@redhat.com>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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^ permalink raw reply	[flat|nested] 4+ messages in thread

* drivers/gpu/drm/vboxvideo/vbox_main.c:146 vbox_hw_init() warn: 'vbox->guest_heap' not released on lines: 126.
@ 2020-10-06 12:51 ` Dan Carpenter
  0 siblings, 0 replies; 4+ messages in thread
From: Dan Carpenter @ 2020-10-06 12:51 UTC (permalink / raw)
  To: kbuild, Daniel Vetter; +Cc: lkp, kbuild-all, linux-kernel, Hans de Goede

[-- Attachment #1: Type: text/plain, Size: 7927 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   472e5b056f000a778abb41f1e443de58eb259783
commit: 8558de401b5fbbfb1df96d6986bba3c79cd47401 drm/vboxvideo: use managed pci functions
config: i386-randconfig-m021-20201002 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/gpu/drm/vboxvideo/vbox_main.c:146 vbox_hw_init() warn: 'vbox->guest_heap' not released on lines: 126.

vim +146 drivers/gpu/drm/vboxvideo/vbox_main.c

d46709094deb69 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2018-09-18  107  int vbox_hw_init(struct vbox_private *vbox)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  108  {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  109  	int ret = -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  110  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  111  	vbox->full_vram_size = inl(VBE_DISPI_IOPORT_DATA);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  112  	vbox->any_pitch = vbox_check_supported(VBE_DISPI_ID_ANYX);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  113  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  114  	DRM_INFO("VRAM %08x\n", vbox->full_vram_size);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  115  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  116  	/* Map guest-heap at end of vram */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  117  	vbox->guest_heap =
01648890f336a3 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2018-09-18  118  	    pci_iomap_range(vbox->ddev.pdev, 0, GUEST_HEAP_OFFSET(vbox),
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  119  			    GUEST_HEAP_SIZE);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  120  	if (!vbox->guest_heap)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  121  		return -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  122  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  123  	/* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  124  	vbox->guest_pool = gen_pool_create(4, -1);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  125  	if (!vbox->guest_pool)
8558de401b5fbb drivers/gpu/drm/vboxvideo/vbox_main.c Daniel Vetter 2020-04-15  126  		return -ENOMEM;

Need to unmap vbox->guest_heap on error.  Probably all error paths?

dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  127  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  128  	ret = gen_pool_add_virt(vbox->guest_pool,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  129  				(unsigned long)vbox->guest_heap,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  130  				GUEST_HEAP_OFFSET(vbox),
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  131  				GUEST_HEAP_USABLE_SIZE, -1);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  132  	if (ret)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  133  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  134  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  135  	ret = hgsmi_test_query_conf(vbox->guest_pool);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  136  	if (ret) {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  137  		DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  138  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  139  	}
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  140  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  141  	/* Reduce available VRAM size to reflect the guest heap. */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  142  	vbox->available_vram_size = GUEST_HEAP_OFFSET(vbox);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  143  	/* Linux drm represents monitors as a 32-bit array. */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  144  	hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_MONITOR_COUNT,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  145  			 &vbox->num_crtcs);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06 @146  	vbox->num_crtcs = clamp_t(u32, vbox->num_crtcs, 1, VBOX_MAX_SCREENS);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  147  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  148  	if (!have_hgsmi_mode_hints(vbox)) {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  149  		ret = -ENOTSUPP;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  150  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  151  	}
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  152  
01648890f336a3 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2018-09-18  153  	vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  154  					     sizeof(struct vbva_modehint),
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  155  					     GFP_KERNEL);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  156  	if (!vbox->last_mode_hints) {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  157  		ret = -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  158  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  159  	}
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  160  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  161  	ret = vbox_accel_init(vbox);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  162  	if (ret)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  163  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  164  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  165  	return 0;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  166  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  167  err_destroy_guest_pool:
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  168  	gen_pool_destroy(vbox->guest_pool);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  169  	return ret;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  170  }

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

[-- Attachment #2: .config.gz --]
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^ permalink raw reply	[flat|nested] 4+ messages in thread

* drivers/gpu/drm/vboxvideo/vbox_main.c:146 vbox_hw_init() warn: 'vbox->guest_heap' not released on lines: 126.
@ 2020-10-06 12:51 ` Dan Carpenter
  0 siblings, 0 replies; 4+ messages in thread
From: Dan Carpenter @ 2020-10-06 12:51 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 8015 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   472e5b056f000a778abb41f1e443de58eb259783
commit: 8558de401b5fbbfb1df96d6986bba3c79cd47401 drm/vboxvideo: use managed pci functions
config: i386-randconfig-m021-20201002 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/gpu/drm/vboxvideo/vbox_main.c:146 vbox_hw_init() warn: 'vbox->guest_heap' not released on lines: 126.

vim +146 drivers/gpu/drm/vboxvideo/vbox_main.c

d46709094deb69 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2018-09-18  107  int vbox_hw_init(struct vbox_private *vbox)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  108  {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  109  	int ret = -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  110  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  111  	vbox->full_vram_size = inl(VBE_DISPI_IOPORT_DATA);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  112  	vbox->any_pitch = vbox_check_supported(VBE_DISPI_ID_ANYX);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  113  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  114  	DRM_INFO("VRAM %08x\n", vbox->full_vram_size);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  115  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  116  	/* Map guest-heap at end of vram */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  117  	vbox->guest_heap =
01648890f336a3 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2018-09-18  118  	    pci_iomap_range(vbox->ddev.pdev, 0, GUEST_HEAP_OFFSET(vbox),
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  119  			    GUEST_HEAP_SIZE);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  120  	if (!vbox->guest_heap)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  121  		return -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  122  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  123  	/* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  124  	vbox->guest_pool = gen_pool_create(4, -1);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  125  	if (!vbox->guest_pool)
8558de401b5fbb drivers/gpu/drm/vboxvideo/vbox_main.c Daniel Vetter 2020-04-15  126  		return -ENOMEM;

Need to unmap vbox->guest_heap on error.  Probably all error paths?

dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  127  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  128  	ret = gen_pool_add_virt(vbox->guest_pool,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  129  				(unsigned long)vbox->guest_heap,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  130  				GUEST_HEAP_OFFSET(vbox),
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  131  				GUEST_HEAP_USABLE_SIZE, -1);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  132  	if (ret)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  133  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  134  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  135  	ret = hgsmi_test_query_conf(vbox->guest_pool);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  136  	if (ret) {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  137  		DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  138  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  139  	}
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  140  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  141  	/* Reduce available VRAM size to reflect the guest heap. */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  142  	vbox->available_vram_size = GUEST_HEAP_OFFSET(vbox);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  143  	/* Linux drm represents monitors as a 32-bit array. */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  144  	hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_MONITOR_COUNT,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  145  			 &vbox->num_crtcs);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06 @146  	vbox->num_crtcs = clamp_t(u32, vbox->num_crtcs, 1, VBOX_MAX_SCREENS);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  147  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  148  	if (!have_hgsmi_mode_hints(vbox)) {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  149  		ret = -ENOTSUPP;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  150  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  151  	}
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  152  
01648890f336a3 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2018-09-18  153  	vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  154  					     sizeof(struct vbva_modehint),
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  155  					     GFP_KERNEL);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  156  	if (!vbox->last_mode_hints) {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  157  		ret = -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  158  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  159  	}
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  160  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  161  	ret = vbox_accel_init(vbox);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  162  	if (ret)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  163  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  164  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  165  	return 0;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  166  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  167  err_destroy_guest_pool:
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  168  	gen_pool_destroy(vbox->guest_pool);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  169  	return ret;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  170  }

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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^ permalink raw reply	[flat|nested] 4+ messages in thread

* drivers/gpu/drm/vboxvideo/vbox_main.c:146 vbox_hw_init() warn: 'vbox->guest_heap' not released on lines: 126.
@ 2020-10-06 12:51 ` Dan Carpenter
  0 siblings, 0 replies; 4+ messages in thread
From: Dan Carpenter @ 2020-10-06 12:51 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 8015 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   472e5b056f000a778abb41f1e443de58eb259783
commit: 8558de401b5fbbfb1df96d6986bba3c79cd47401 drm/vboxvideo: use managed pci functions
config: i386-randconfig-m021-20201002 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/gpu/drm/vboxvideo/vbox_main.c:146 vbox_hw_init() warn: 'vbox->guest_heap' not released on lines: 126.

vim +146 drivers/gpu/drm/vboxvideo/vbox_main.c

d46709094deb69 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2018-09-18  107  int vbox_hw_init(struct vbox_private *vbox)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  108  {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  109  	int ret = -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  110  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  111  	vbox->full_vram_size = inl(VBE_DISPI_IOPORT_DATA);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  112  	vbox->any_pitch = vbox_check_supported(VBE_DISPI_ID_ANYX);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  113  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  114  	DRM_INFO("VRAM %08x\n", vbox->full_vram_size);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  115  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  116  	/* Map guest-heap at end of vram */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  117  	vbox->guest_heap =
01648890f336a3 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2018-09-18  118  	    pci_iomap_range(vbox->ddev.pdev, 0, GUEST_HEAP_OFFSET(vbox),
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  119  			    GUEST_HEAP_SIZE);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  120  	if (!vbox->guest_heap)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  121  		return -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  122  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  123  	/* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  124  	vbox->guest_pool = gen_pool_create(4, -1);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  125  	if (!vbox->guest_pool)
8558de401b5fbb drivers/gpu/drm/vboxvideo/vbox_main.c Daniel Vetter 2020-04-15  126  		return -ENOMEM;

Need to unmap vbox->guest_heap on error.  Probably all error paths?

dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  127  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  128  	ret = gen_pool_add_virt(vbox->guest_pool,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  129  				(unsigned long)vbox->guest_heap,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  130  				GUEST_HEAP_OFFSET(vbox),
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  131  				GUEST_HEAP_USABLE_SIZE, -1);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  132  	if (ret)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  133  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  134  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  135  	ret = hgsmi_test_query_conf(vbox->guest_pool);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  136  	if (ret) {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  137  		DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  138  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  139  	}
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  140  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  141  	/* Reduce available VRAM size to reflect the guest heap. */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  142  	vbox->available_vram_size = GUEST_HEAP_OFFSET(vbox);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  143  	/* Linux drm represents monitors as a 32-bit array. */
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  144  	hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_MONITOR_COUNT,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  145  			 &vbox->num_crtcs);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06 @146  	vbox->num_crtcs = clamp_t(u32, vbox->num_crtcs, 1, VBOX_MAX_SCREENS);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  147  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  148  	if (!have_hgsmi_mode_hints(vbox)) {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  149  		ret = -ENOTSUPP;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  150  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  151  	}
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  152  
01648890f336a3 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2018-09-18  153  	vbox->last_mode_hints = devm_kcalloc(vbox->ddev.dev, vbox->num_crtcs,
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  154  					     sizeof(struct vbva_modehint),
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  155  					     GFP_KERNEL);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  156  	if (!vbox->last_mode_hints) {
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  157  		ret = -ENOMEM;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  158  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  159  	}
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  160  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  161  	ret = vbox_accel_init(vbox);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  162  	if (ret)
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  163  		goto err_destroy_guest_pool;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  164  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  165  	return 0;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  166  
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  167  err_destroy_guest_pool:
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  168  	gen_pool_destroy(vbox->guest_pool);
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  169  	return ret;
dd55d44f408419 drivers/staging/vboxvideo/vbox_main.c Hans de Goede 2017-07-06  170  }

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 32255 bytes --]

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2020-10-06 17:17 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-10-02 10:31 drivers/gpu/drm/vboxvideo/vbox_main.c:146 vbox_hw_init() warn: 'vbox->guest_heap' not released on lines: 126 kernel test robot
2020-10-06 12:51 Dan Carpenter
2020-10-06 12:51 ` Dan Carpenter
2020-10-06 12:51 ` Dan Carpenter

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