drm: Release reference from blob lookup after replacing property

drm_property_lookup_blob() returns a reference to the returned blob, and
drm_atomic_replace_property_blob() takes a references to the blob it
stores, so afterwards we are left owning a reference to the new_blob that
we never release, and thus leak memory every time we update a property
such as during drm_atomic_helper_legacy_gamma_set().

v2: update credentials, drm_property_unreference_blob() is NULL safe and
NULL is passed consistently to it throughout drm_atomic.c so do so here.

Reported-by: Felix Monninger <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98420
Signed-off-by: Felix Monninger <[email protected]>
Signed-off-by: Chris Wilson <[email protected]>
Cc: [email protected]
Fixes: 5488dc16fde7 ("drm: introduce pipe color correction properties")
Reviewed-by: Ville Syrjälä <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]

0 files changed, 0 insertions, 0 deletions