nvme-pci: check segement valid for SGL use

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The driver needs to verify there is a payload with a command before
seeing if it should use SGLs to map it.

Fixes: 955b1b5a00 ("nvme-pci: move use_sgl initialization to nvme_init_iod()")
Reported-by: Paul Menzel <pmenzel+linux-nvme@molgen.mpg.de>
Reviewed-by: Paul Menzel <pmenzel+linux-nvme@molgen.mpg.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Keith Busch 2018-01-17 22:04:37 +01:00 • committed by Jens Axboe

parent 32835a0741

commit 20469a37ae

1 changed files with 5 additions and 2 deletions

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drivers/nvme/host/pci.c

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