* [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]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <CGME20171003111849epcas1p3335e2bc56e5aafdeadc340301284b2b8@epcas1p3.samsung.com>
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
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.