tree 0de2d391eee6fc2ade05bdaeedbdcfdb9558a7d6
parent b03eaa4d3428ebbc5e32e3595be6027e7d99942b
author Alexandre Courbot <acourbot@nvidia.com> 1425969968 +0900
committer Ben Skeggs <bskeggs@redhat.com> 1428994849 +1000

drm/nouveau/instmem/gk20a: fix crash during error path

If a memory allocation fails when using the DMA allocator,
gk20a_instobj_dtor_dma() will be called on the failed instmem object.
At this time, node->handle might not be NULL despite the call to
dma_alloc_attrs() having failed. node->cpuaddr is the right member to
check for such a failure, so use it instead.

Reported-by: Vince Hsu <vinceh@nvidia.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>