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drm/radeon: Don't dereference possibly-NULL pointer. 

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Michel Dänzer 2012-03-29 16:47:43 +02:00 committed by Dave Airlie
parent fa9e855025
commit e199fd4224
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/radeon/radeon_object.c
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@ -241,7 +241,8 @@ int radeon_bo_pin_restricted(struct radeon_bo *bo, u32 domain, u64 max_offset,
domain_start = bo->rdev->mc.vram_start; domain_start = bo->rdev->mc.vram_start;
else else
domain_start = bo->rdev->mc.gtt_start; domain_start = bo->rdev->mc.gtt_start;
WARN_ON_ONCE((*gpu_addr - domain_start) > max_offset); WARN_ON_ONCE(max_offset <
(radeon_bo_gpu_offset(bo) - domain_start));
} }
return 0; return 0;