From: Geert Uytterhoeven <geert@linux-m68k.org>
To: "Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
"Andreas Färber" <afaerber@suse.de>,
"Linus Walleij" <linus.walleij@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org,
linux-kernel@vger.kernel.org,
Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH] pinctrl: actions: Fix uninitialized error in owl_pin_config_set()
Date: Fri, 8 Jun 2018 12:05:47 +0200 [thread overview]
Message-ID: <1528452347-23986-1-git-send-email-geert@linux-m68k.org> (raw)
With gcc 4.1.2:
drivers/pinctrl/actions/pinctrl-owl.c: In function ‘owl_pin_config_set’:
drivers/pinctrl/actions/pinctrl-owl.c:336: warning: ‘ret’ may be used uninitialized in this function
Indeed, if num_configs is zero, the uninitialized value will be returned
as an error code.
Fix this by preinitializing it to zero.
Fixes: 2242ddfbf4d699b5 ("pinctrl: actions: Add Actions S900 pinctrl driver")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
drivers/pinctrl/actions/pinctrl-owl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pinctrl/actions/pinctrl-owl.c b/drivers/pinctrl/actions/pinctrl-owl.c
index 76243caa08c630c0..b5c880b50bb371f5 100644
--- a/drivers/pinctrl/actions/pinctrl-owl.c
+++ b/drivers/pinctrl/actions/pinctrl-owl.c
@@ -333,7 +333,7 @@ static int owl_pin_config_set(struct pinctrl_dev *pctrldev,
unsigned long flags;
unsigned int param;
u32 reg, bit, width, arg;
- int ret, i;
+ int ret = 0, i;
info = &pctrl->soc->padinfo[pin];
--
2.7.4
next reply other threads:[~2018-06-08 10:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-08 10:05 Geert Uytterhoeven [this message]
2018-06-08 10:22 ` [PATCH] pinctrl: actions: Fix uninitialized error in owl_pin_config_set() Manivannan Sadhasivam
2018-06-14 8:35 ` Linus Walleij
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