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(parent: e0d78d0) | patch
drm: fb: cma: Fail gracefully on allocation failure
authorThierry Reding <thierry.reding@avionic-design.de>
Sat, 20 Oct 2012 10:32:47 +0000 (10:32 +0000)
committerDave Airlie <airlied@redhat.com>
Tue, 23 Oct 2012 00:14:58 +0000 (10:14 +1000)
commit028132451667ffd25b6814d47a622ec03cb8cba7
tree6c73fe777af9c267263e58dc040f339fccc9d30ftree | snapshot
parente0d78d08e3c06ebe2eb45b4d84f8cd5d1b13d371commit | diff
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>
drivers/gpu/drm/drm_fb_cma_helper.c diff | blob | history
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