tree a31be5d7d9a6596a1d0f1efc6e01b7d5f560ad93
parent cd63894630ab17a192bf97427d16dbec10710a6a
author Keith Busch <keith.busch@intel.com> 1373922144 -0600
committer Matthew Wilcox <matthew.r.wilcox@intel.com> 1378241065 -0400

NVMe: Handle ioremap failure

Decrement the number of queues required for doorbell remapping until
the memory is successfully mapped for that size.

Additional checks are done so that we don't call free_irq if it has
already been freed.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>