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drm/syncobj: Fix oops on drm_syncobj_find_fence(file_priv, 0, ...).

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This broke rendering on V3D, where we almost always have a 0
in-syncobj.

Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes: 48197bc564 ("drm: add syncobj timeline support v9")
Cc: Chunming Zhou <david1.zhou@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.kernel.org/patch/10669317/
Signed-off-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Eric Anholt 2018-11-05 15:01:10 -08:00 committed by Christian König
parent a7f7090f44
commit aecbde630e
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/drm_syncobj.c
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@ -443,7 +443,8 @@ int drm_syncobj_find_fence(struct drm_file *file_private,
int ret;
ret = drm_syncobj_search_fence(syncobj, point, flags, fence);
drm_syncobj_put(syncobj);
if (syncobj)
drm_syncobj_put(syncobj);
return ret;
}
EXPORT_SYMBOL(drm_syncobj_find_fence);