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drm/radeon: fix UVD message buffer validation

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commit 112a6d0c07 upstream.

When the message buffer is currently moving block until it is idle again.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christian König 2013-08-11 21:27:56 +02:00 committed by Greg Kroah-Hartman
parent 6a33cbd049
commit 21779249f0
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/radeon/radeon_uvd.c
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@ -359,6 +359,14 @@ static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
return -EINVAL;
}
if (bo->tbo.sync_obj) {
r = radeon_fence_wait(bo->tbo.sync_obj, false);
if (r) {
DRM_ERROR("Failed waiting for UVD message (%d)!\n", r);
return r;
}
}
r = radeon_bo_kmap(bo, &ptr);
if (r)
return r;