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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-07-02 09:54:01 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-07-02 09:54:01 +0100
commit29cb3cd208dd0e4471bb80bec4facc49ceb199fa (patch)
tree035128bf7af997d5e1e5208c900ba78c5a1df46d /arch/arm/plat-samsung/pm.c
parentcbe263497def23befb6f475977661bae5d1f82e4 (diff)
downloadlinux-linaro-stable-29cb3cd208dd0e4471bb80bec4facc49ceb199fa.tar.gz
ARM: pm: allow suspend finisher to return error codes
There are SoCs where attempting to enter a low power state is ignored, and the CPU continues executing instructions with all state preserved. It is over-complex at that point to disable the MMU just to call the resume path. Instead, allow the suspend finisher to return error codes to abort suspend in this circumstance, where the cpu_suspend internals will then unwind the saved state on the stack. Also omit the tlb flush as no changes to the page tables will have happened. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/plat-samsung/pm.c')
-rw-r--r--arch/arm/plat-samsung/pm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c
index 69d6b040a019..5fa1742d019b 100644
--- a/arch/arm/plat-samsung/pm.c
+++ b/arch/arm/plat-samsung/pm.c
@@ -232,7 +232,7 @@ static void __maybe_unused s3c_pm_show_resume_irqs(int start,
void (*pm_cpu_prep)(void);
-void (*pm_cpu_sleep)(unsigned long);
+int (*pm_cpu_sleep)(unsigned long);
#define any_allowed(mask, allow) (((mask) & (allow)) != (allow))