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ide: fix generic_ide_suspend/resume Oops

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This patch fixes a regresion introduced by commit 0998d063 (device-core: Ensure
drvdata = NULL when no driver is bound).

Suspend oopses in generic_ide_suspend() because dev_get_drvdata()
returns NULL (dev->p->driver_data == NULL) and this function is not
prepared for this.

Fix is based on Alan Stern's suggestion.

Signed-off-by: Miklos Szeredi <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Miklos Szeredi 2012-08-21 17:20:30 +02:00 • committed by David S. Miller
commit 9974e43d90
1 changed files with 2 additions and 2 deletions
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4
drivers/ide/ide-pm.c
View file

@ -4,7 +4,7 @@
int generic_ide_suspend(struct device *dev, pm_message_t mesg)
{
ide_drive_t *drive = dev_get_drvdata(dev);
ide_drive_t *drive = to_ide_device(dev);
ide_drive_t *pair = ide_get_pair_dev(drive);
ide_hwif_t *hwif = drive->hwif;
struct request *rq;
@ -40,7 +40,7 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg)
int generic_ide_resume(struct device *dev)
{
ide_drive_t *drive = dev_get_drvdata(dev);
ide_drive_t *drive = to_ide_device(dev);
ide_drive_t *pair = ide_get_pair_dev(drive);
ide_hwif_t *hwif = drive->hwif;
struct request *rq;