tree 834a08f452e00713beb57ddedf22a212314ab219
parent 74ad54f249de39bc040cce7237b1b854a9c6f0ad
author Jérôme Glisse <jglisse@redhat.com> 1399494924 -0400
committer Christian König <christian.koenig@amd.com> 1400589726 +0200

drm/radeon: avoid segfault on device open when accel is not working.

When accel is not working on device with virtual address space radeon
segfault because the ib buffer is NULL and trying to map it inside the
virtual address space trigger segfault. This patch only map the ib
buffer if accel is working.

Cc: <stable@vger.kernel.org>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>