tree 145d64cae53ae09aa5e74c3774f89cfd3e4a1f25
parent f60ec4c7df043df81e62891ac45383d012afe0da
author Devendra Naga <devendra.aaru@gmail.com> 1341652935 +0000
committer Dave Airlie <airlied@redhat.com> 1342749925 -0400

drm/mgag200: fix null pointer dereference

we are referencing the pointer after doing alloc_apertures,
as alloc_apertures kzallocs, the kzalloc may fail and we get a NULL.

so we need to check for NULL before we dereference this pointer

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>