From 88d10bbaaec38856f913313b6c0858d9e9b7a066 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Thu, 22 Sep 2005 21:43:46 -0700 Subject: [PATCH] [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 , Nigel Cunningham , Pierre Ossman History of this bug is at: http://bugme.osdl.org/show_bug.cgi?id=4320 Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/power/disk.c | 6 ++---- 1 file 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 #include #include +#include #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: -- 2.30.2