Not that this driver compiles, but coverity picked up this nonsense.  If
the pci_alloc_consistent fails, we go boom.  Amusingly, after the ==NULL
check, is an identical memset.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>