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authorAlexey Khoroshilov <khoroshilov@ispras.ru>2016-04-16 02:12:29 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2016-04-29 19:01:34 -0400
commit1354379b13f190ae5da21c26836a16ba56566ab3 (patch)
treead9d15c40db01702375fc7e8867327ec843368e2
parent71d397581d52c24c9903d9729aae09828f956801 (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.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 7ebccfa..7ee1667 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);