[PATCH AUTOSEL 6.13 14/21] scsi: qla1280: Fix kernel oops when debug level > 2

From: Sasha Levin
Date: Mon Feb 10 2025 - 20:33:17 EST


From: Magnus Lindholm <linmag7@xxxxxxxxx>

[ Upstream commit 5233e3235dec3065ccc632729675575dbe3c6b8a ]

A null dereference or oops exception will eventually occur when qla1280.c
driver is compiled with DEBUG_QLA1280 enabled and ql_debug_level > 2. I
think its clear from the code that the intention here is sg_dma_len(s) not
length of sg_next(s) when printing the debug info.

Signed-off-by: Magnus Lindholm <linmag7@xxxxxxxxx>
Link: https://lore.kernel.org/r/20250125095033.26188-1-linmag7@xxxxxxxxx
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/scsi/qla1280.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index 8958547ac111a..fed07b1460702 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -2867,7 +2867,7 @@ qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
cpu_to_le32(upper_32_bits(dma_handle)),
cpu_to_le32(lower_32_bits(dma_handle)),
- cpu_to_le32(sg_dma_len(sg_next(s))));
+ cpu_to_le32(sg_dma_len(s)));
remseg--;
}
dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
--
2.39.5