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ARM: vfp: only clear vfp state for current cpu in vfp_pm_suspend

Message ID 1342462680-18548-1-git-send-email-ccross@android.com (mailing list archive)
State New, archived
Headers show

Commit Message

Colin Cross July 16, 2012, 6:18 p.m. UTC 
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@android.com>
---
 arch/arm/vfp/vfpmodule.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
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Patch

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;
 }