NVMe: Check for DMA mapping failure
If dma_map_sg returns 0 (failure), we need to fail the I/O.
Signed-off-by:
Matthew Wilcox <matthew.r.wilcox@intel.com>
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If dma_map_sg returns 0 (failure), we need to fail the I/O.
Signed-off-by:
Matthew Wilcox <matthew.r.wilcox@intel.com>