irda: vlsi_ir: fix check for DMA mapping errors
authorAlexey Khoroshilov <khoroshilov@ispras.ru>
Fri, 24 Mar 2017 22:48:08 +0000 (01:48 +0300)
committerDavid S. Miller <davem@davemloft.net>
Sun, 26 Mar 2017 03:14:40 +0000 (20:14 -0700)
commit6ac3b77a6ffff7513ff86b684aa256ea01c0e5b5
tree2ac956b31729a81f5d30a92ad640a709bd2d0297
parent834a61d455ff8069552f44140b2c1de85e6bc84d
irda: vlsi_ir: fix check for DMA mapping errors

vlsi_alloc_ring() checks for DMA mapping errors by comparing
returned address with zero, while pci_dma_mapping_error() should be used.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/irda/vlsi_ir.c