drm/i915: Warn on if set frontbuffer return value is not NULL on release

i915_gem_object_set_frontbuffer returns set frontbuffer pointer.  When we
are releasing frontbuffer we are clearing the pointer from the object. Warn
on if return value is not null.

v3: Check i915_gem_object_set_frontbuffer return value separately
v2: Instead of ignoring do drm_WARN_ON

Cc: Rodrigo Vivi <[email protected]>
Cc: Jani Nikula <[email protected]>

Signed-off-by: Jouni Högander <[email protected]>
Reviewed-by: Jani Nikula <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

0 files changed, 0 insertions, 0 deletions