From: Tuo Li <islituo@xxxxxxxxx>
[ Upstream commit 8515965e5e33f4feb56134348c95953f3eadfb26 ]
The variable pdev is assigned to dev->plat_dev, and dev->plat_dev is
checked in:
if (!dev->plat_dev)
This indicates both dev->plat_dev and pdev can be NULL. If so, the
function dev_err() is called to print error information.
dev_err(&pdev->dev, "No platform data specified\n");
However, &pdev->dev is an illegal address, and it is dereferenced in
dev_err().
To fix this possible null-pointer dereference, replace dev_err() with
mfc_err().
Reported-by: TOTE Robot <oslab@xxxxxxxxxxxxxxx>
Signed-off-by: Tuo Li <islituo@xxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/media/platform/s5p-mfc/s5p_mfc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 4b8516c35bc20..80bb58d31c3f6 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -1276,7 +1276,7 @@ static int s5p_mfc_probe(struct platform_device *pdev)
spin_lock_init(&dev->condlock);
dev->plat_dev = pdev;
if (!dev->plat_dev) {
- dev_err(&pdev->dev, "No platform data specified\n");
+ mfc_err("No platform data specified\n");
return -ENODEV;
}
--
2.33.0
