linux-kernel - [ 44/60] drm/radeon: stop sending invalid UVD destroy msg

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Date:	Mon, 12 Aug 2013 23:34:11 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Christian König <christian.koenig@....com>,
	Alex Deucher <alexander.deucher@....com>
Subject: [ 44/60] drm/radeon: stop sending invalid UVD destroy msg

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Christian König <christian.koenig@....com>

commit 641a00593f7d07eab778fbabf546fb68fff3d5ce upstream.

We also need to check the handle.

Signed-off-by: Christian König <christian.koenig@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/radeon/radeon_uvd.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -218,8 +218,8 @@ void radeon_uvd_free_handles(struct rade
 {
 	int i, r;
 	for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
-		if (rdev->uvd.filp[i] == filp) {
-			uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
+		uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
+		if (handle != 0 && rdev->uvd.filp[i] == filp) {
 			struct radeon_fence *fence;
 
 			r = radeon_uvd_get_destroy_msg(rdev,


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