Add the missing error check for dma_map_sg. Cc: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxx> Cc: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx> Cc: linux-scsi@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Signed-off-by: Jack Wang <jinpu.wang@xxxxxxxxx> --- drivers/scsi/qlogicpti.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c index 57f2f4135a06..8c961ff03fcd 100644 --- a/drivers/scsi/qlogicpti.c +++ b/drivers/scsi/qlogicpti.c @@ -909,7 +909,8 @@ static inline int load_cmd(struct scsi_cmnd *Cmnd, struct Command_Entry *cmd, sg_count = dma_map_sg(&qpti->op->dev, sg, scsi_sg_count(Cmnd), Cmnd->sc_data_direction); - + if (!sg_count) + return -1; ds = cmd->dataseg; cmd->segment_cnt = sg_count; -- 2.34.1
