drm/i915: take struct mutex around fb unref

Need to do this in case the unref ends up doing a free. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
mariux64 · Feb 20, 2009 · 496818f · 496818f
1 parent 43565a0
commit 496818f
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
@@ -1606,7 +1606,9 @@ intel_user_framebuffer_create(struct drm_device *dev,
 
 	ret = intel_framebuffer_create(dev, mode_cmd, &fb, obj);
 	if (ret) {
+		mutex_lock(&dev->struct_mutex);
 		drm_gem_object_unreference(obj);
+		mutex_unlock(&dev->struct_mutex);
 		return NULL;
 	}