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| author | Eric W. Biederman <ebiederm@xmission.com> | 2005-09-23 06:43:46 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-23 07:17:33 +0200 |
| commit | 88d10bbaaec38856f913313b6c0858d9e9b7a066 (patch) | |
| tree | 0d38947da1e0d72d00ae35e64b25f7d1c31d1556 | |
| parent | [PATCH] reboot: comment and factor the main reboot functions (diff) | |
| download | linux-88d10bbaaec38856f913313b6c0858d9e9b7a066.tar.xz linux-88d10bbaaec38856f913313b6c0858d9e9b7a066.zip | |
[PATCH] suspend: cleanup calling of power off methods.
In the lead up to 2.6.13 I fixed a large number of reboot problems by
making the calling conventions consistent. Despite checking and double
checking my work it appears I missed an obvious one.
The S4 suspend code for PM_DISK_PLATFORM was also calling device_shutdown
without setting system_state, and was not calling the appropriate
reboot_notifier.
This patch fixes the bug by replacing the call of device_suspend with
kernel_poweroff_prepare.
Various forms of this failure have been fixed and tracked for a while.
Thanks for tracking this down go to: Alexey Starikovskiy, Meelis Roos
<mroos@linux.ee>, Nigel Cunningham <ncunningham@cyclades.com>, Pierre
Ossman <drzeus-list@drzeus.cx>
History of this bug is at:
http://bugme.osdl.org/show_bug.cgi?id=4320
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | kernel/power/disk.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/power/disk.c b/kernel/power/disk.c index 2d8bf054d036..761956e813f5 100644 --- a/kernel/power/disk.c +++ b/kernel/power/disk.c @@ -17,12 +17,12 @@ #include <linux/delay.h> #include <linux/fs.h> #include <linux/mount.h> +#include <linux/pm.h> #include "power.h" extern suspend_disk_method_t pm_disk_mode; -extern struct pm_ops * pm_ops; extern int swsusp_suspend(void); extern int swsusp_write(void); @@ -49,13 +49,11 @@ dev_t swsusp_resume_device; static void power_down(suspend_disk_method_t mode) { - unsigned long flags; int error = 0; - local_irq_save(flags); switch(mode) { case PM_DISK_PLATFORM: - device_shutdown(); + kernel_power_off_prepare(); error = pm_ops->enter(PM_SUSPEND_DISK); break; case PM_DISK_SHUTDOWN: |