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PM: Fix pm_notifiers during user mode hibernation

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Snapshot device is opened with O_RDONLY during suspend and O_WRONLY durig
resume.  Make sure we also call notifiers with correct parameter telling
them what we are really doing.

Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Len Brown <lenb@kernel.org>
Cc: Greg KH <gregkh@suse.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrey Borzenkov 2009-02-14 02:05:14 +01:00 committed by Linus Torvalds
parent 0cb57258fe
commit ebae2604f2
1 changed files with 6 additions and 6 deletions
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12
kernel/power/user.c
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@ -95,15 +95,15 @@ static int snapshot_open(struct inode *inode, struct file *filp)
data->swap = swsusp_resume_device ?
swap_type_of(swsusp_resume_device, 0, NULL) : -1;
data->mode = O_RDONLY;
error = pm_notifier_call_chain(PM_RESTORE_PREPARE);
if (error)
pm_notifier_call_chain(PM_POST_RESTORE);
} else {
data->swap = -1;
data->mode = O_WRONLY;
error = pm_notifier_call_chain(PM_HIBERNATION_PREPARE);
if (error)
pm_notifier_call_chain(PM_POST_HIBERNATION);
} else {
data->swap = -1;
data->mode = O_WRONLY;
error = pm_notifier_call_chain(PM_RESTORE_PREPARE);
if (error)
pm_notifier_call_chain(PM_POST_RESTORE);
}
if (error)
atomic_inc(&snapshot_device_available);