s390/pci: return error code from s390_dma_map_sg()

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The .map_sg() op now expects an error code instead of zero on failure.

So propagate the error from __s390_dma_map_sg() up. __s390_dma_map_sg()
returns either -ENOMEM on allocation failure or -EINVAL which is
the same as what's expected by dma_map_sgtable().

Signed-off-by: Martin Oliveira <martin.oliveira@eideticom.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Niklas Schnelle <schnelle@linux.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

...

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Martin Oliveira 2021-07-29 14:15:30 -06:00 • committed by Christoph Hellwig

parent eb86ef3b2d

commit 911ace0ba6

1 changed files with 7 additions and 5 deletions

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arch/s390/pci/pci_dma.c

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