nvme-pci: fix freeing single sgl

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There may only be a single DMA mapped entry from multiple physical
segments, which means we don't allocate a separte SGL list. Check the
number of allocations prior to know if we need to free something.

Freeing a single list allocation is the same for both PRP and SGL
usages, so we don't need to check the use_sgl flag anymore.

Fixes: 01df742d8c ("nvme-pci: remove SGL segment descriptors")
Reported-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Niklas Schnelle <schnelle@linux.ibm.com>

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Keith Busch 2023-02-10 10:03:46 -08:00 • committed by Christoph Hellwig

parent 2f1e07dda1

commit 8f0edf45bb

1 changed files with 1 additions and 1 deletions

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drivers/nvme/host/pci.c

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