drm/i915: refleak along pin() error path.

A missing unreference if the user calls pin() a second time on a pinned
buffer.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index b79ced8f3c61e832f76f451576444ce0e5b89226..55f4c060fa01d83b8f066376431e1a02803e0f4c 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2755,6 +2755,7 @@ i915_gem_pin_ioctl(struct drm_device *dev, void *data,
        if (obj_priv->pin_filp != NULL && obj_priv->pin_filp != file_priv) {
                DRM_ERROR("Already pinned in i915_gem_pin_ioctl(): %d\n",
                          args->handle);
+               drm_gem_object_unreference(obj);
                mutex_unlock(&dev->struct_mutex);
                return -EINVAL;
        }