[PATCH] ARM: vfp: only clear vfp state for current cpu in vfp_pm_suspend

From: Colin Cross
Date: Mon Jul 16 2012 - 14:18:00 EST

vfp_pm_suspend runs on each cpu, only clear the hardware state
pointer for the current cpu. Prevents a possible crash if one
cpu clears the hw state pointer when another cpu has already
checked if it is valid.

Signed-off-by: Colin Cross <ccross@xxxxxxxxxxx>
arch/arm/vfp/vfpmodule.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index ce55f05..fb849d0 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -466,7 +466,7 @@ static int vfp_pm_suspend(void)

/* clear any information we had about last context state */
- memset(vfp_current_hw_state, 0, sizeof(vfp_current_hw_state));
+ vfp_current_hw_state[ti->cpu] = NULL;

return 0;

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