[patch 2/5] drivers/gpu/drm/via/via_video.c: fix off by one issue

[akpm@linux-foundation.org]

From: Dan Carpenter <error27@gmail.com>

"fx->lock" is used as the index in "dev_priv->decoder_queue[fx->lock]"
which is an array of "VIA_NR_XVMC_LOCKS" elements.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/gpu/drm/via/via_video.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/gpu/drm/via/via_video.c~drivers-gpu-drm-via-via_videoc-fix-off-by-one-issue drivers/gpu/drm/via/via_video.c
--- a/drivers/gpu/drm/via/via_video.c~drivers-gpu-drm-via-via_videoc-fix-off-by-one-issue
+++ a/drivers/gpu/drm/via/via_video.c
@@ -75,7 +75,7 @@ int via_decoder_futex(struct drm_device 
 
 	DRM_DEBUG("\n");
 
-	if (fx->lock > VIA_NR_XVMC_LOCKS)
+	if (fx->lock >= VIA_NR_XVMC_LOCKS)
 		return -EFAULT;
 
 	lock = (volatile int *)XVMCLOCKPTR(sAPriv, fx->lock);
_

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