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(parent: 2b579a0) | patch
nvme-pci: fix error unwind in nvme_map_data
authorChristoph Hellwig <hch@lst.de>
Wed, 20 Jan 2021 08:35:01 +0000 (09:35 +0100)
committerChristoph Hellwig <hch@lst.de>
Wed, 20 Jan 2021 17:56:33 +0000 (18:56 +0100)
commit2cfc70e9501d909dcd38e2c7b5e54674d745c5ea
tree3c7970231b1ffd86791daf4d0bee1ab34299e2f3tree | snapshot
parent2b579a019e50eb89bddf422c9984cefd4367ff16commit | diff
nvme-pci: fix error unwind in nvme_map_data

Properly unwind step by step using refactored helpers from nvme_unmap_data
to avoid a potential double dma_unmap on a mapping failure.

Fixes: 6b5fa2f5e5b9 ("nvme-pci: merge nvme_free_iod into nvme_unmap_data")
Reported-by: Marc Orr <marcorr@google.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Marc Orr <marcorr@google.com>
drivers/nvme/host/pci.c diff | blob | history
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