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(parent: 8ba28ac) | patch
drm: radeon: radeon_ttm: Handle return NULL error from ioremap_nocache
authorArvind Yadav <arvind.yadav.cs@gmail.com>
Tue, 24 Jan 2017 09:16:16 +0000 (14:46 +0530)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 27 Jan 2017 17:20:38 +0000 (12:20 -0500)
commit3b2c69328280278593e0cd87e83da51bbc748ce7
tree47c0830e6e6d82aeee746b0c48e9546135c41042tree | snapshot
parent8ba28ac9f5cc36f91b64273b11d302e02bd77508commit | diff
drm: radeon: radeon_ttm: Handle return NULL error from ioremap_nocache

Here, If ioremap_nocache will fail. It will return NULL.
Kernel can run into a NULL-pointer dereference.
This error check will avoid NULL pointer dereference.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/radeon/radeon_ttm.c diff | blob | history
Domain: System / Kernel; Licenses: GPL-2.0;