For drm_gem_object_unreference callers are required to hold
dev->struct_mutex, which these paths don't. Enforcing this requirement
has become a bit more strict with
commit ef4c6270bf2867e2f8032e9614d1a8cfc6c71663
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date: Thu Oct 15 09:36:25 2015 +0200
drm/gem: Check locking in drm_gem_object_unreference
Cc: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
index 6fcbbcc2e99e..cfb6caad2a73 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
@@ -263,7 +263,7 @@ out_unref:
}
if (fb && ret) {
- drm_gem_object_unreference(gobj);
+ drm_gem_object_unreference_unlocked(gobj);
drm_framebuffer_unregister_private(fb);
drm_framebuffer_cleanup(fb);
kfree(fb);
--
2.5.1
