From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Qiushi Wu <wu000273@umn.edu>,
Felix Kuehling <Felix.Kuehling@amd.com>,
Alex Deucher <alexander.deucher@amd.com>,
Sasha Levin <sashal@kernel.org>,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: [PATCH AUTOSEL 5.7 21/61] drm/amdkfd: Fix reference count leaks.
Date: Fri, 21 Aug 2020 12:15:05 -0400 [thread overview]
Message-ID: <20200821161545.347622-21-sashal@kernel.org> (raw)
In-Reply-To: <20200821161545.347622-1-sashal@kernel.org>
From: Qiushi Wu <wu000273@umn.edu>
[ Upstream commit 20eca0123a35305e38b344d571cf32768854168c ]
kobject_init_and_add() takes reference even when it fails.
If this function returns an error, kobject_put() must be called to
properly clean up the memory associated with the object.
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 20 +++++++++++++++-----
1 file changed, 15 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
index aa0bfa78a6674..8ff12cda6690e 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -630,8 +630,10 @@ static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev,
ret = kobject_init_and_add(dev->kobj_node, &node_type,
sys_props.kobj_nodes, "%d", id);
- if (ret < 0)
+ if (ret < 0) {
+ kobject_put(dev->kobj_node);
return ret;
+ }
dev->kobj_mem = kobject_create_and_add("mem_banks", dev->kobj_node);
if (!dev->kobj_mem)
@@ -678,8 +680,10 @@ static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev,
return -ENOMEM;
ret = kobject_init_and_add(mem->kobj, &mem_type,
dev->kobj_mem, "%d", i);
- if (ret < 0)
+ if (ret < 0) {
+ kobject_put(mem->kobj);
return ret;
+ }
mem->attr.name = "properties";
mem->attr.mode = KFD_SYSFS_FILE_MODE;
@@ -697,8 +701,10 @@ static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev,
return -ENOMEM;
ret = kobject_init_and_add(cache->kobj, &cache_type,
dev->kobj_cache, "%d", i);
- if (ret < 0)
+ if (ret < 0) {
+ kobject_put(cache->kobj);
return ret;
+ }
cache->attr.name = "properties";
cache->attr.mode = KFD_SYSFS_FILE_MODE;
@@ -716,8 +722,10 @@ static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev,
return -ENOMEM;
ret = kobject_init_and_add(iolink->kobj, &iolink_type,
dev->kobj_iolink, "%d", i);
- if (ret < 0)
+ if (ret < 0) {
+ kobject_put(iolink->kobj);
return ret;
+ }
iolink->attr.name = "properties";
iolink->attr.mode = KFD_SYSFS_FILE_MODE;
@@ -797,8 +805,10 @@ static int kfd_topology_update_sysfs(void)
ret = kobject_init_and_add(sys_props.kobj_topology,
&sysprops_type, &kfd_device->kobj,
"topology");
- if (ret < 0)
+ if (ret < 0) {
+ kobject_put(sys_props.kobj_topology);
return ret;
+ }
sys_props.kobj_nodes = kobject_create_and_add("nodes",
sys_props.kobj_topology);
--
2.25.1
next prev parent reply other threads:[~2020-08-21 17:20 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-21 16:14 [PATCH AUTOSEL 5.7 01/61] ALSA: hda/hdmi: Add quirk to force connectivity Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 02/61] ALSA: pci: delete repeated words in comments Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 03/61] ALSA: hda/realtek: Fix pin default on Intel NUC 8 Rugged Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 04/61] ALSA: hda/hdmi: Use force connectivity quirk on another HP desktop Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 05/61] drm/amdgpu: fix RAS memory leak in error case Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 06/61] EDAC/mc: Call edac_inc_ue_error() before panic Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 07/61] ASoC: img: Fix a reference count leak in img_i2s_in_set_fmt Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 08/61] ASoC: img-parallel-out: Fix a reference count leak Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 09/61] ASoC: tegra: Fix reference count leaks Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 10/61] mfd: intel-lpss: Add Intel Emmitsburg PCH PCI IDs Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 11/61] arm64: dts: qcom: msm8916: Pull down PDM GPIOs during sleep Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 12/61] powerpc/xive: Ignore kmemleak false positives Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 13/61] media: pci: ttpci: av7110: fix possible buffer overflow caused by bad DMA value in debiirq() Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 14/61] gcc-plugins/stackleak: Don't instrument itself Sasha Levin
2020-08-21 16:14 ` [PATCH AUTOSEL 5.7 15/61] blktrace: ensure our debugfs dir exists Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 16/61] staging: rts5208: fix memleaks on error handling paths in probe Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 17/61] scsi: target: tcmu: Fix crash on ARM during cmd completion Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 18/61] mfd: intel-lpss: Add Intel Tiger Lake PCH-H PCI IDs Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 19/61] iommu/iova: Don't BUG on invalid PFNs Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 20/61] platform/chrome: cros_ec_sensorhub: Fix EC timestamp overflow Sasha Levin
2020-08-21 16:15 ` Sasha Levin [this message]
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 22/61] drm/radeon: fix multiple reference count leak Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 23/61] drm/amdgpu: fix ref count leak in amdgpu_driver_open_kms Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 24/61] drm/amd/display: fix ref count leak in amdgpu_drm_ioctl Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 25/61] drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 26/61] drm/amdgpu/display: fix ref count leak when pm_runtime_get_sync fails Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 27/61] drm/amdgpu/fence: " Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 28/61] drm/amdkfd: " Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 29/61] drm/amdgpu/pm: " Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 30/61] scsi: lpfc: Fix shost refcount mismatch when deleting vport Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 31/61] xfs: Don't allow logging of XFS_ISTALE inodes Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 32/61] scsi: target: Fix xcopy sess release leak Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 33/61] selftests/powerpc: Purge extra count_pmc() calls of ebb selftests Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 34/61] f2fs: remove write attribute of main_blkaddr sysfs node Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 35/61] f2fs: fix error path in do_recover_data() Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 36/61] omapfb: fix multiple reference count leaks due to pm_runtime_get_sync Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 37/61] PCI: Fix pci_create_slot() reference count leak Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 38/61] ARM: dts: ls1021a: output PPS signal on FIPER2 Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 39/61] rtlwifi: rtl8192cu: Prevent leaking urb Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 40/61] mips/vdso: Fix resource leaks in genvdso.c Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 41/61] ALSA: hda: Add support for Loongson 7A1000 controller Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 42/61] gpu: host1x: Put gather's BO on pinning error Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 43/61] cec-api: prevent leaking memory through hole in structure Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 44/61] ASoC: Intel: sof_sdw_rt711: remove properties in card remove Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 45/61] HID: quirks: add NOGET quirk for Logitech GROUP Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 46/61] f2fs: fix use-after-free issue Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 47/61] drm/nouveau/drm/noveau: fix reference count leak in nouveau_fbcon_open Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 48/61] drm/nouveau: fix reference count leak in nv50_disp_atomic_commit Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 49/61] drm/nouveau: Fix reference count leak in nouveau_connector_detect Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 50/61] locking/lockdep: Fix overflow in presentation of average lock-time Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 51/61] btrfs: file: reserve qgroup space after the hole punch range is locked Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 52/61] btrfs: make btrfs_qgroup_check_reserved_leak take btrfs_inode Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 53/61] scsi: iscsi: Do not put host in iscsi_set_flashnode_param() Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 54/61] RDMA/efa: Add EFA 0xefa1 PCI ID Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 55/61] netfilter: nf_tables: report EEXIST on overlaps Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 56/61] ceph: fix potential mdsc use-after-free crash Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 57/61] ceph: do not access the kiocb after aio requests Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 58/61] scsi: fcoe: Memory leak fix in fcoe_sysfs_fcf_del() Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 59/61] i2c: i801: Add support for Intel Tiger Lake PCH-H Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 60/61] EDAC/ie31200: Fallback if host bridge device is already initialized Sasha Levin
2020-08-21 16:15 ` [PATCH AUTOSEL 5.7 61/61] hugetlbfs: prevent filesystem stacking of hugetlbfs Sasha Levin
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