pci_alloc_consistent uses GFP_ATOMIC allocation that may fail on some systems
with limited memory (Bug #14265). pci_pool_alloc allows waiting with
GFP_KERNEL.
Tested-by: NKarol Lewandowski <karol.k.lewandowski@gmail.com>
Signed-off-by: NRoger Oksanen <roger.oksanen@cs.helsinki.fi>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>