diff options
| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2016-04-16 02:12:29 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-04-29 19:01:34 -0400 |
| commit | 1354379b13f190ae5da21c26836a16ba56566ab3 (patch) | |
| tree | ad9d15c40db01702375fc7e8867327ec843368e2 | |
| parent | 71d397581d52c24c9903d9729aae09828f956801 (diff) | |
mptsas: fix checks for dma mapping errors
mptsas_smp_handler() checks for dma mapping errors by comparison
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>
Acked-by: Sathya Prakash Veerichetty <sathya.prakash@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/message/fusion/mptsas.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index 7ebccfa8072a..7ee1667acde4 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -2281,7 +2281,7 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, dma_addr_out = pci_map_single(ioc->pcidev, bio_data(req->bio), blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL); - if (!dma_addr_out) + if (pci_dma_mapping_error(ioc->pcidev, dma_addr_out)) goto put_mf; ioc->add_sge(psge, flagsLength, dma_addr_out); psge += ioc->SGE_size; @@ -2296,7 +2296,7 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, flagsLength |= blk_rq_bytes(rsp) + 4; dma_addr_in = pci_map_single(ioc->pcidev, bio_data(rsp->bio), blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL); - if (!dma_addr_in) + if (pci_dma_mapping_error(ioc->pcidev, dma_addr_in)) goto unmap; ioc->add_sge(psge, flagsLength, dma_addr_in); |