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    Subject[PATCH] ARM: vfp: only clear vfp state for current cpu in vfp_pm_suspend
    Date
    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(-)

    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;
    }
    --
    1.7.7.3


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