tree 6c73fe777af9c267263e58dc040f339fccc9d30f
parent e0d78d08e3c06ebe2eb45b4d84f8cd5d1b13d371
author Thierry Reding <thierry.reding@avionic-design.de> 1350729167 +0000
committer Dave Airlie <airlied@redhat.com> 1350951298 +1000

drm: fb: cma: Fail gracefully on allocation failure

The drm_gem_cma_create() function never returns NULL but rather an error
encoded in the return value using the ERR_PTR() macro. Callers therefore
need to check for errors using the IS_ERR() macro. This change allows
drivers to handle contiguous DMA allocation failures gracefully.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>