* [PATCH v2] ide: add missing hwif->portdev freeing on hwif_init() failure [not found] <CGME20171003111849epcas1p3335e2bc56e5aafdeadc340301284b2b8@epcas1p3.samsung.com> @ 2017-10-03 11:18 ` Bartlomiej Zolnierkiewicz 2017-10-03 13:43 ` Guenter Roeck ` (2 more replies) 0 siblings, 3 replies; 7+ messages in thread From: Bartlomiej Zolnierkiewicz @ 2017-10-03 11:18 UTC (permalink / raw) To: David S. Miller Cc: Guenter Roeck, Lorenzo Pieralisi, Bjorn Helgaas, Richard Henderson, Ivan Kokshaysky, Matt Turner, linux-ide, linux-kernel Recent pci_assign_irq() changes uncovered a problem with missing freeing of ide_port class instance on hwif_init() failure in ide_host_register(): ide0: disabled, no IRQ ide0: failed to initialize IDE interface ide0: disabling port cmd64x 0000:00:02.0: IDE controller (0x1095:0x0646 rev 0x07) CMD64x_IDE 0000:00:02.0: BAR 0: can't reserve [io 0x8050-0x8057] cmd64x 0000:00:02.0: can't reserve resources CMD64x_IDE: probe of 0000:00:02.0 failed with error -16 ide_generic: please use "probe_mask=0x3f" module parameter for probing all legacy ISA IDE ports ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x94/0xd0 sysfs: cannot create duplicate filename '/class/ide_port/ide0' ... Trace: [<fffffc00003308a0>] __warn+0x160/0x190 [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 [<fffffc0000330928>] warn_slowpath_fmt+0x58/0x70 [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 [<fffffc0000486d40>] kernfs_path_from_node+0x30/0x60 [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 [<fffffc000048d010>] sysfs_do_create_link_sd.isra.2+0x100/0x120 [<fffffc00005b9d64>] device_add+0x2a4/0x7c0 [<fffffc00005ba5cc>] device_create_groups_vargs+0x14c/0x170 [<fffffc00005ba518>] device_create_groups_vargs+0x98/0x170 [<fffffc00005ba690>] device_create+0x50/0x70 [<fffffc00005df36c>] ide_host_register+0x48c/0xa00 [<fffffc00005df330>] ide_host_register+0x450/0xa00 [<fffffc00005ba2a0>] device_register+0x20/0x50 [<fffffc00005df330>] ide_host_register+0x450/0xa00 [<fffffc00005df944>] ide_host_add+0x64/0xe0 [<fffffc000079b41c>] kobject_uevent_env+0x16c/0x710 [<fffffc0000310288>] do_one_initcall+0x68/0x260 [<fffffc00007b13bc>] kernel_init+0x1c/0x1a0 [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 [<fffffc0000311868>] ret_from_kernel_thread+0x18/0x20 [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 ---[ end trace 24a70433c3e4d374 ]--- ide0: disabling port Fix the problem by adding missing code to ide_host_register(). Link: http://lkml.kernel.org/r/32ec730f-c1b0-5584-cd35-f8a809122b96@roeck-us.net Reported-by: Guenter Roeck <linux@roeck-us.net> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Matt Turner <mattst88@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> --- This should fix sysfs warning and probing of ide_generic driver driven ports in case of hwif_init() failure (i.e. no IRQ issue when pci_assign_irq() fix is not present). v2: - Fixed typo in the patch description: pci_assing_irq() -> pci_assign_irq(). drivers/ide/ide-probe.c | 1 + 1 file changed, 1 insertion(+) Index: b/drivers/ide/ide-probe.c =================================================================== --- a/drivers/ide/ide-probe.c 2017-10-02 15:08:16.658662459 +0200 +++ b/drivers/ide/ide-probe.c 2017-10-03 11:59:36.867189557 +0200 @@ -1451,6 +1451,7 @@ int ide_host_register(struct ide_host *h if (hwif_init(hwif) == 0) { printk(KERN_INFO "%s: failed to initialize IDE " "interface\n", hwif->name); + device_unregister(hwif->portdev); device_unregister(&hwif->gendev); ide_disable_port(hwif); continue; ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] ide: add missing hwif->portdev freeing on hwif_init() failure 2017-10-03 11:18 ` [PATCH v2] ide: add missing hwif->portdev freeing on hwif_init() failure Bartlomiej Zolnierkiewicz @ 2017-10-03 13:43 ` Guenter Roeck 2017-10-03 17:53 ` Bjorn Helgaas 2017-10-03 17:57 ` Bjorn Helgaas 2 siblings, 0 replies; 7+ messages in thread From: Guenter Roeck @ 2017-10-03 13:43 UTC (permalink / raw) To: Bartlomiej Zolnierkiewicz, David S. Miller Cc: Lorenzo Pieralisi, Bjorn Helgaas, Richard Henderson, Ivan Kokshaysky, Matt Turner, linux-ide, linux-kernel On 10/03/2017 04:18 AM, Bartlomiej Zolnierkiewicz wrote: > Recent pci_assign_irq() changes uncovered a problem with missing > freeing of ide_port class instance on hwif_init() failure in > ide_host_register(): > > ide0: disabled, no IRQ > ide0: failed to initialize IDE interface > ide0: disabling port > cmd64x 0000:00:02.0: IDE controller (0x1095:0x0646 rev 0x07) > CMD64x_IDE 0000:00:02.0: BAR 0: can't reserve [io 0x8050-0x8057] > cmd64x 0000:00:02.0: can't reserve resources > CMD64x_IDE: probe of 0000:00:02.0 failed with error -16 > ide_generic: please use "probe_mask=0x3f" module parameter for probing > all legacy ISA IDE ports > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x94/0xd0 > sysfs: cannot create duplicate filename '/class/ide_port/ide0' > ... > > Trace: > [<fffffc00003308a0>] __warn+0x160/0x190 > [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 > [<fffffc0000330928>] warn_slowpath_fmt+0x58/0x70 > [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 > [<fffffc0000486d40>] kernfs_path_from_node+0x30/0x60 > [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 > [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 > [<fffffc000048d010>] sysfs_do_create_link_sd.isra.2+0x100/0x120 > [<fffffc00005b9d64>] device_add+0x2a4/0x7c0 > [<fffffc00005ba5cc>] device_create_groups_vargs+0x14c/0x170 > [<fffffc00005ba518>] device_create_groups_vargs+0x98/0x170 > [<fffffc00005ba690>] device_create+0x50/0x70 > [<fffffc00005df36c>] ide_host_register+0x48c/0xa00 > [<fffffc00005df330>] ide_host_register+0x450/0xa00 > [<fffffc00005ba2a0>] device_register+0x20/0x50 > [<fffffc00005df330>] ide_host_register+0x450/0xa00 > [<fffffc00005df944>] ide_host_add+0x64/0xe0 > [<fffffc000079b41c>] kobject_uevent_env+0x16c/0x710 > [<fffffc0000310288>] do_one_initcall+0x68/0x260 > [<fffffc00007b13bc>] kernel_init+0x1c/0x1a0 > [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 > [<fffffc0000311868>] ret_from_kernel_thread+0x18/0x20 > [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 > > ---[ end trace 24a70433c3e4d374 ]--- > ide0: disabling port > > Fix the problem by adding missing code to ide_host_register(). > > Link: http://lkml.kernel.org/r/32ec730f-c1b0-5584-cd35-f8a809122b96@roeck-us.net > Reported-by: Guenter Roeck <linux@roeck-us.net> > Cc: Bjorn Helgaas <bhelgaas@google.com> > Cc: Richard Henderson <rth@twiddle.net> > Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> > Cc: Guenter Roeck <linux@roeck-us.net> > Cc: Matt Turner <mattst88@gmail.com> > Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Tested-by: Guenter Roeck <linux@roeck-us.net> ... on linux-next which actually crashes on reboot without this and the "free up BARs on failure" patch. Guenter > --- > This should fix sysfs warning and probing of ide_generic driver > driven ports in case of hwif_init() failure (i.e. no IRQ issue > when pci_assign_irq() fix is not present). > > v2: > - Fixed typo in the patch description: pci_assing_irq() -> pci_assign_irq(). > > drivers/ide/ide-probe.c | 1 + > 1 file changed, 1 insertion(+) > > Index: b/drivers/ide/ide-probe.c > =================================================================== > --- a/drivers/ide/ide-probe.c 2017-10-02 15:08:16.658662459 +0200 > +++ b/drivers/ide/ide-probe.c 2017-10-03 11:59:36.867189557 +0200 > @@ -1451,6 +1451,7 @@ int ide_host_register(struct ide_host *h > if (hwif_init(hwif) == 0) { > printk(KERN_INFO "%s: failed to initialize IDE " > "interface\n", hwif->name); > + device_unregister(hwif->portdev); > device_unregister(&hwif->gendev); > ide_disable_port(hwif); > continue; > > ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] ide: add missing hwif->portdev freeing on hwif_init() failure 2017-10-03 11:18 ` [PATCH v2] ide: add missing hwif->portdev freeing on hwif_init() failure Bartlomiej Zolnierkiewicz 2017-10-03 13:43 ` Guenter Roeck @ 2017-10-03 17:53 ` Bjorn Helgaas 2017-10-03 17:57 ` Bjorn Helgaas 2 siblings, 0 replies; 7+ messages in thread From: Bjorn Helgaas @ 2017-10-03 17:53 UTC (permalink / raw) To: Bartlomiej Zolnierkiewicz Cc: David S. Miller, Guenter Roeck, Lorenzo Pieralisi, Bjorn Helgaas, Richard Henderson, Ivan Kokshaysky, Matt Turner, linux-ide, linux-kernel [+cc linux-pci] My plan is to take these two additional fixes via the PCI tree, along with Lorenzo's patch to add a pci_assign_irq() call in ide_scan_pcidev(), since they're all related. On Tue, Oct 03, 2017 at 01:18:47PM +0200, Bartlomiej Zolnierkiewicz wrote: > Recent pci_assign_irq() changes uncovered a problem with missing > freeing of ide_port class instance on hwif_init() failure in > ide_host_register(): > > ide0: disabled, no IRQ > ide0: failed to initialize IDE interface > ide0: disabling port > cmd64x 0000:00:02.0: IDE controller (0x1095:0x0646 rev 0x07) > CMD64x_IDE 0000:00:02.0: BAR 0: can't reserve [io 0x8050-0x8057] > cmd64x 0000:00:02.0: can't reserve resources > CMD64x_IDE: probe of 0000:00:02.0 failed with error -16 > ide_generic: please use "probe_mask=0x3f" module parameter for probing > all legacy ISA IDE ports > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x94/0xd0 > sysfs: cannot create duplicate filename '/class/ide_port/ide0' > ... > > Trace: > [<fffffc00003308a0>] __warn+0x160/0x190 > [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 > [<fffffc0000330928>] warn_slowpath_fmt+0x58/0x70 > [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 > [<fffffc0000486d40>] kernfs_path_from_node+0x30/0x60 > [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 > [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 > [<fffffc000048d010>] sysfs_do_create_link_sd.isra.2+0x100/0x120 > [<fffffc00005b9d64>] device_add+0x2a4/0x7c0 > [<fffffc00005ba5cc>] device_create_groups_vargs+0x14c/0x170 > [<fffffc00005ba518>] device_create_groups_vargs+0x98/0x170 > [<fffffc00005ba690>] device_create+0x50/0x70 > [<fffffc00005df36c>] ide_host_register+0x48c/0xa00 > [<fffffc00005df330>] ide_host_register+0x450/0xa00 > [<fffffc00005ba2a0>] device_register+0x20/0x50 > [<fffffc00005df330>] ide_host_register+0x450/0xa00 > [<fffffc00005df944>] ide_host_add+0x64/0xe0 > [<fffffc000079b41c>] kobject_uevent_env+0x16c/0x710 > [<fffffc0000310288>] do_one_initcall+0x68/0x260 > [<fffffc00007b13bc>] kernel_init+0x1c/0x1a0 > [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 > [<fffffc0000311868>] ret_from_kernel_thread+0x18/0x20 > [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 > > ---[ end trace 24a70433c3e4d374 ]--- > ide0: disabling port > > Fix the problem by adding missing code to ide_host_register(). > > Link: http://lkml.kernel.org/r/32ec730f-c1b0-5584-cd35-f8a809122b96@roeck-us.net > Reported-by: Guenter Roeck <linux@roeck-us.net> > Cc: Bjorn Helgaas <bhelgaas@google.com> > Cc: Richard Henderson <rth@twiddle.net> > Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> > Cc: Guenter Roeck <linux@roeck-us.net> > Cc: Matt Turner <mattst88@gmail.com> > Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> > --- > This should fix sysfs warning and probing of ide_generic driver > driven ports in case of hwif_init() failure (i.e. no IRQ issue > when pci_assign_irq() fix is not present). > > v2: > - Fixed typo in the patch description: pci_assing_irq() -> pci_assign_irq(). > > drivers/ide/ide-probe.c | 1 + > 1 file changed, 1 insertion(+) > > Index: b/drivers/ide/ide-probe.c > =================================================================== > --- a/drivers/ide/ide-probe.c 2017-10-02 15:08:16.658662459 +0200 > +++ b/drivers/ide/ide-probe.c 2017-10-03 11:59:36.867189557 +0200 > @@ -1451,6 +1451,7 @@ int ide_host_register(struct ide_host *h > if (hwif_init(hwif) == 0) { > printk(KERN_INFO "%s: failed to initialize IDE " > "interface\n", hwif->name); > + device_unregister(hwif->portdev); > device_unregister(&hwif->gendev); > ide_disable_port(hwif); > continue; > ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] ide: add missing hwif->portdev freeing on hwif_init() failure 2017-10-03 11:18 ` [PATCH v2] ide: add missing hwif->portdev freeing on hwif_init() failure Bartlomiej Zolnierkiewicz 2017-10-03 13:43 ` Guenter Roeck 2017-10-03 17:53 ` Bjorn Helgaas @ 2017-10-03 17:57 ` Bjorn Helgaas 2017-10-03 19:11 ` Bjorn Helgaas 2 siblings, 1 reply; 7+ messages in thread From: Bjorn Helgaas @ 2017-10-03 17:57 UTC (permalink / raw) To: Bartlomiej Zolnierkiewicz Cc: David S. Miller, Guenter Roeck, Lorenzo Pieralisi, Bjorn Helgaas, Richard Henderson, Ivan Kokshaysky, Matt Turner, linux-ide, linux-kernel, linux-pci [+cc linux-pci for real] My plan is to take these two additional fixes via the PCI tree, along with Lorenzo's patch to add a pci_assign_irq() call in ide_scan_pcidev(), since they're all related. On Tue, Oct 03, 2017 at 01:18:47PM +0200, Bartlomiej Zolnierkiewicz wrote: > Recent pci_assign_irq() changes uncovered a problem with missing > freeing of ide_port class instance on hwif_init() failure in > ide_host_register(): > > ide0: disabled, no IRQ > ide0: failed to initialize IDE interface > ide0: disabling port > cmd64x 0000:00:02.0: IDE controller (0x1095:0x0646 rev 0x07) > CMD64x_IDE 0000:00:02.0: BAR 0: can't reserve [io 0x8050-0x8057] > cmd64x 0000:00:02.0: can't reserve resources > CMD64x_IDE: probe of 0000:00:02.0 failed with error -16 > ide_generic: please use "probe_mask=0x3f" module parameter for probing > all legacy ISA IDE ports > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x94/0xd0 > sysfs: cannot create duplicate filename '/class/ide_port/ide0' > ... > > Trace: > [<fffffc00003308a0>] __warn+0x160/0x190 > [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 > [<fffffc0000330928>] warn_slowpath_fmt+0x58/0x70 > [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 > [<fffffc0000486d40>] kernfs_path_from_node+0x30/0x60 > [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 > [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 > [<fffffc000048d010>] sysfs_do_create_link_sd.isra.2+0x100/0x120 > [<fffffc00005b9d64>] device_add+0x2a4/0x7c0 > [<fffffc00005ba5cc>] device_create_groups_vargs+0x14c/0x170 > [<fffffc00005ba518>] device_create_groups_vargs+0x98/0x170 > [<fffffc00005ba690>] device_create+0x50/0x70 > [<fffffc00005df36c>] ide_host_register+0x48c/0xa00 > [<fffffc00005df330>] ide_host_register+0x450/0xa00 > [<fffffc00005ba2a0>] device_register+0x20/0x50 > [<fffffc00005df330>] ide_host_register+0x450/0xa00 > [<fffffc00005df944>] ide_host_add+0x64/0xe0 > [<fffffc000079b41c>] kobject_uevent_env+0x16c/0x710 > [<fffffc0000310288>] do_one_initcall+0x68/0x260 > [<fffffc00007b13bc>] kernel_init+0x1c/0x1a0 > [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 > [<fffffc0000311868>] ret_from_kernel_thread+0x18/0x20 > [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 > > ---[ end trace 24a70433c3e4d374 ]--- > ide0: disabling port > > Fix the problem by adding missing code to ide_host_register(). > > Link: http://lkml.kernel.org/r/32ec730f-c1b0-5584-cd35-f8a809122b96@roeck-us.net > Reported-by: Guenter Roeck <linux@roeck-us.net> > Cc: Bjorn Helgaas <bhelgaas@google.com> > Cc: Richard Henderson <rth@twiddle.net> > Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> > Cc: Guenter Roeck <linux@roeck-us.net> > Cc: Matt Turner <mattst88@gmail.com> > Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> > --- > This should fix sysfs warning and probing of ide_generic driver > driven ports in case of hwif_init() failure (i.e. no IRQ issue > when pci_assign_irq() fix is not present). > > v2: > - Fixed typo in the patch description: pci_assing_irq() -> pci_assign_irq(). > > drivers/ide/ide-probe.c | 1 + > 1 file changed, 1 insertion(+) > > Index: b/drivers/ide/ide-probe.c > =================================================================== > --- a/drivers/ide/ide-probe.c 2017-10-02 15:08:16.658662459 +0200 > +++ b/drivers/ide/ide-probe.c 2017-10-03 11:59:36.867189557 +0200 > @@ -1451,6 +1451,7 @@ int ide_host_register(struct ide_host *h > if (hwif_init(hwif) == 0) { > printk(KERN_INFO "%s: failed to initialize IDE " > "interface\n", hwif->name); > + device_unregister(hwif->portdev); > device_unregister(&hwif->gendev); > ide_disable_port(hwif); > continue; > ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] ide: add missing hwif->portdev freeing on hwif_init() failure 2017-10-03 17:57 ` Bjorn Helgaas @ 2017-10-03 19:11 ` Bjorn Helgaas 2017-10-03 19:19 ` Bjorn Helgaas 0 siblings, 1 reply; 7+ messages in thread From: Bjorn Helgaas @ 2017-10-03 19:11 UTC (permalink / raw) To: Bartlomiej Zolnierkiewicz Cc: David S. Miller, Guenter Roeck, Lorenzo Pieralisi, Bjorn Helgaas, Richard Henderson, Ivan Kokshaysky, Matt Turner, linux-ide, linux-kernel, linux-pci On Tue, Oct 03, 2017 at 12:57:42PM -0500, Bjorn Helgaas wrote: > [+cc linux-pci for real] > > My plan is to take these two additional fixes via the PCI tree, along > with Lorenzo's patch to add a pci_assign_irq() call in > ide_scan_pcidev(), since they're all related. > > On Tue, Oct 03, 2017 at 01:18:47PM +0200, Bartlomiej Zolnierkiewicz wrote: > > Recent pci_assign_irq() changes uncovered a problem with missing > > freeing of ide_port class instance on hwif_init() failure in > > ide_host_register(): > > > > ide0: disabled, no IRQ > > ide0: failed to initialize IDE interface > > ide0: disabling port > > cmd64x 0000:00:02.0: IDE controller (0x1095:0x0646 rev 0x07) > > CMD64x_IDE 0000:00:02.0: BAR 0: can't reserve [io 0x8050-0x8057] > > cmd64x 0000:00:02.0: can't reserve resources > > CMD64x_IDE: probe of 0000:00:02.0 failed with error -16 > > ide_generic: please use "probe_mask=0x3f" module parameter for probing > > all legacy ISA IDE ports > > ------------[ cut here ]------------ > > WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x94/0xd0 > > sysfs: cannot create duplicate filename '/class/ide_port/ide0' > > ... > > > > Trace: > > [<fffffc00003308a0>] __warn+0x160/0x190 > > [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 > > [<fffffc0000330928>] warn_slowpath_fmt+0x58/0x70 > > [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 > > [<fffffc0000486d40>] kernfs_path_from_node+0x30/0x60 > > [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 > > [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 > > [<fffffc000048d010>] sysfs_do_create_link_sd.isra.2+0x100/0x120 > > [<fffffc00005b9d64>] device_add+0x2a4/0x7c0 > > [<fffffc00005ba5cc>] device_create_groups_vargs+0x14c/0x170 > > [<fffffc00005ba518>] device_create_groups_vargs+0x98/0x170 > > [<fffffc00005ba690>] device_create+0x50/0x70 > > [<fffffc00005df36c>] ide_host_register+0x48c/0xa00 > > [<fffffc00005df330>] ide_host_register+0x450/0xa00 > > [<fffffc00005ba2a0>] device_register+0x20/0x50 > > [<fffffc00005df330>] ide_host_register+0x450/0xa00 > > [<fffffc00005df944>] ide_host_add+0x64/0xe0 > > [<fffffc000079b41c>] kobject_uevent_env+0x16c/0x710 > > [<fffffc0000310288>] do_one_initcall+0x68/0x260 > > [<fffffc00007b13bc>] kernel_init+0x1c/0x1a0 > > [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 > > [<fffffc0000311868>] ret_from_kernel_thread+0x18/0x20 > > [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 > > > > ---[ end trace 24a70433c3e4d374 ]--- > > ide0: disabling port > > > > Fix the problem by adding missing code to ide_host_register(). > > > > Link: http://lkml.kernel.org/r/32ec730f-c1b0-5584-cd35-f8a809122b96@roeck-us.net > > Reported-by: Guenter Roeck <linux@roeck-us.net> > > Cc: Bjorn Helgaas <bhelgaas@google.com> > > Cc: Richard Henderson <rth@twiddle.net> > > Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> > > Cc: Guenter Roeck <linux@roeck-us.net> > > Cc: Matt Turner <mattst88@gmail.com> > > Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Applied with Guenter's tested-by to for-linus for v4.14, thanks! > > --- > > This should fix sysfs warning and probing of ide_generic driver > > driven ports in case of hwif_init() failure (i.e. no IRQ issue > > when pci_assign_irq() fix is not present). > > > > v2: > > - Fixed typo in the patch description: pci_assing_irq() -> pci_assign_irq(). > > > > drivers/ide/ide-probe.c | 1 + > > 1 file changed, 1 insertion(+) > > > > Index: b/drivers/ide/ide-probe.c > > =================================================================== > > --- a/drivers/ide/ide-probe.c 2017-10-02 15:08:16.658662459 +0200 > > +++ b/drivers/ide/ide-probe.c 2017-10-03 11:59:36.867189557 +0200 > > @@ -1451,6 +1451,7 @@ int ide_host_register(struct ide_host *h > > if (hwif_init(hwif) == 0) { > > printk(KERN_INFO "%s: failed to initialize IDE " > > "interface\n", hwif->name); > > + device_unregister(hwif->portdev); > > device_unregister(&hwif->gendev); > > ide_disable_port(hwif); > > continue; > > ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] ide: add missing hwif->portdev freeing on hwif_init() failure 2017-10-03 19:11 ` Bjorn Helgaas @ 2017-10-03 19:19 ` Bjorn Helgaas 2017-10-03 20:55 ` David Miller 0 siblings, 1 reply; 7+ messages in thread From: Bjorn Helgaas @ 2017-10-03 19:19 UTC (permalink / raw) To: Bartlomiej Zolnierkiewicz Cc: David S. Miller, Guenter Roeck, Lorenzo Pieralisi, Bjorn Helgaas, Richard Henderson, Ivan Kokshaysky, Matt Turner, linux-ide, linux-kernel, linux-pci On Tue, Oct 03, 2017 at 02:11:08PM -0500, Bjorn Helgaas wrote: > On Tue, Oct 03, 2017 at 12:57:42PM -0500, Bjorn Helgaas wrote: > > [+cc linux-pci for real] > > > > My plan is to take these two additional fixes via the PCI tree, along > > with Lorenzo's patch to add a pci_assign_irq() call in > > ide_scan_pcidev(), since they're all related. > > > > On Tue, Oct 03, 2017 at 01:18:47PM +0200, Bartlomiej Zolnierkiewicz wrote: > > > Recent pci_assign_irq() changes uncovered a problem with missing > > > freeing of ide_port class instance on hwif_init() failure in > > > ide_host_register(): > > > > > > ide0: disabled, no IRQ > > > ide0: failed to initialize IDE interface > > > ide0: disabling port > > > cmd64x 0000:00:02.0: IDE controller (0x1095:0x0646 rev 0x07) > > > CMD64x_IDE 0000:00:02.0: BAR 0: can't reserve [io 0x8050-0x8057] > > > cmd64x 0000:00:02.0: can't reserve resources > > > CMD64x_IDE: probe of 0000:00:02.0 failed with error -16 > > > ide_generic: please use "probe_mask=0x3f" module parameter for probing > > > all legacy ISA IDE ports > > > ------------[ cut here ]------------ > > > WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x94/0xd0 > > > sysfs: cannot create duplicate filename '/class/ide_port/ide0' > > > ... > > > > > > Trace: > > > [<fffffc00003308a0>] __warn+0x160/0x190 > > > [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 > > > [<fffffc0000330928>] warn_slowpath_fmt+0x58/0x70 > > > [<fffffc000048c9f4>] sysfs_warn_dup+0x94/0xd0 > > > [<fffffc0000486d40>] kernfs_path_from_node+0x30/0x60 > > > [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 > > > [<fffffc00004874ac>] kernfs_put+0x16c/0x2c0 > > > [<fffffc000048d010>] sysfs_do_create_link_sd.isra.2+0x100/0x120 > > > [<fffffc00005b9d64>] device_add+0x2a4/0x7c0 > > > [<fffffc00005ba5cc>] device_create_groups_vargs+0x14c/0x170 > > > [<fffffc00005ba518>] device_create_groups_vargs+0x98/0x170 > > > [<fffffc00005ba690>] device_create+0x50/0x70 > > > [<fffffc00005df36c>] ide_host_register+0x48c/0xa00 > > > [<fffffc00005df330>] ide_host_register+0x450/0xa00 > > > [<fffffc00005ba2a0>] device_register+0x20/0x50 > > > [<fffffc00005df330>] ide_host_register+0x450/0xa00 > > > [<fffffc00005df944>] ide_host_add+0x64/0xe0 > > > [<fffffc000079b41c>] kobject_uevent_env+0x16c/0x710 > > > [<fffffc0000310288>] do_one_initcall+0x68/0x260 > > > [<fffffc00007b13bc>] kernel_init+0x1c/0x1a0 > > > [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 > > > [<fffffc0000311868>] ret_from_kernel_thread+0x18/0x20 > > > [<fffffc00007b13a0>] kernel_init+0x0/0x1a0 > > > > > > ---[ end trace 24a70433c3e4d374 ]--- > > > ide0: disabling port > > > > > > Fix the problem by adding missing code to ide_host_register(). > > > > > > Link: http://lkml.kernel.org/r/32ec730f-c1b0-5584-cd35-f8a809122b96@roeck-us.net > > > Reported-by: Guenter Roeck <linux@roeck-us.net> > > > Cc: Bjorn Helgaas <bhelgaas@google.com> > > > Cc: Richard Henderson <rth@twiddle.net> > > > Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> > > > Cc: Guenter Roeck <linux@roeck-us.net> > > > Cc: Matt Turner <mattst88@gmail.com> > > > Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> > > Applied with Guenter's tested-by to for-linus for v4.14, thanks! BTW, if you'd rather take these via an IDE tree, let me know and I'll drop it from mine. > > > --- > > > This should fix sysfs warning and probing of ide_generic driver > > > driven ports in case of hwif_init() failure (i.e. no IRQ issue > > > when pci_assign_irq() fix is not present). > > > > > > v2: > > > - Fixed typo in the patch description: pci_assing_irq() -> pci_assign_irq(). > > > > > > drivers/ide/ide-probe.c | 1 + > > > 1 file changed, 1 insertion(+) > > > > > > Index: b/drivers/ide/ide-probe.c > > > =================================================================== > > > --- a/drivers/ide/ide-probe.c 2017-10-02 15:08:16.658662459 +0200 > > > +++ b/drivers/ide/ide-probe.c 2017-10-03 11:59:36.867189557 +0200 > > > @@ -1451,6 +1451,7 @@ int ide_host_register(struct ide_host *h > > > if (hwif_init(hwif) == 0) { > > > printk(KERN_INFO "%s: failed to initialize IDE " > > > "interface\n", hwif->name); > > > + device_unregister(hwif->portdev); > > > device_unregister(&hwif->gendev); > > > ide_disable_port(hwif); > > > continue; > > > ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] ide: add missing hwif->portdev freeing on hwif_init() failure 2017-10-03 19:19 ` Bjorn Helgaas @ 2017-10-03 20:55 ` David Miller 0 siblings, 0 replies; 7+ messages in thread From: David Miller @ 2017-10-03 20:55 UTC (permalink / raw) To: helgaas Cc: b.zolnierkie, linux, lorenzo.pieralisi, bhelgaas, rth, ink, mattst88, linux-ide, linux-kernel, linux-pci From: Bjorn Helgaas <helgaas@kernel.org> Date: Tue, 3 Oct 2017 14:19:55 -0500 > BTW, if you'd rather take these via an IDE tree, let me know and I'll > drop it from mine. No, feel free to take it via PCI, that's perfectly fine with me. ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2017-10-03 20:55 UTC | newest]
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2017-10-03 11:18 ` [PATCH v2] ide: add missing hwif->portdev freeing on hwif_init() failure Bartlomiej Zolnierkiewicz
2017-10-03 13:43 ` Guenter Roeck
2017-10-03 17:53 ` Bjorn Helgaas
2017-10-03 17:57 ` Bjorn Helgaas
2017-10-03 19:11 ` Bjorn Helgaas
2017-10-03 19:19 ` Bjorn Helgaas
2017-10-03 20:55 ` David Miller
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