From 9806d1b895f42c919620539b8e7621d73ea6d60d Mon Sep 17 00:00:00 2001 From: Jack Wang Date: Fri, 26 Aug 2022 12:14:35 +0200 Subject: [PATCH] scsi: qlogicpti: Fix dma_map_sg() check Add missing error check for dma_map_sg(). Cc: "James E.J. Bottomley" Cc: "Martin K. Petersen" Cc: linux-scsi@vger.kernel.org Cc: linux-kernel@vger.kernel.org Link: https://lore.kernel.org/r/20220826101435.79170-1-jinpu.wang@ionos.com Signed-off-by: Jack Wang Signed-off-by: Martin K. Petersen --- 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;