[PATCH 5.16 0210/1039] pinctrl: mediatek: uninitialized variable in mtk_pctrl_show_one_pin()

From: Greg Kroah-Hartman
Date: Mon Jan 24 2022 - 19:16:25 EST


From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

[ Upstream commit 67bbbcb49b968a93251de7b23616d5aff5d3a726 ]

The "try_all_type" variable is not set if (hw->soc->pull_type) is false
leading to the following Smatch warning:

drivers/pinctrl/mediatek/pinctrl-paris.c:599 mtk_pctrl_show_one_pin()
error: uninitialized symbol 'try_all_type'.

Fixes: fb34a9ae383a ("pinctrl: mediatek: support rsel feature")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20211127140750.GA24002@kili
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/pinctrl/mediatek/pinctrl-paris.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c
index d4e02c5d74a89..4c6f6d967b18a 100644
--- a/drivers/pinctrl/mediatek/pinctrl-paris.c
+++ b/drivers/pinctrl/mediatek/pinctrl-paris.c
@@ -581,7 +581,7 @@ ssize_t mtk_pctrl_show_one_pin(struct mtk_pinctrl *hw,
{
int pinmux, pullup, pullen, len = 0, r1 = -1, r0 = -1, rsel = -1;
const struct mtk_pin_desc *desc;
- u32 try_all_type;
+ u32 try_all_type = 0;

if (gpio >= hw->soc->npins)
return -EINVAL;
--
2.34.1