linux-kernel - [PATCH V1] mfd: da9053: fix compiler warning message for uninitialised variable

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Date:	Mon, 27 Jun 2016 16:06:36 +0100
From:	Steve Twiss <stwiss.opensource@...semi.com>
To:	LINUXKERNEL <linux-kernel@...r.kernel.org>,
	Lee Jones <lee.jones@...aro.org>
CC:	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Support Opensource <support.opensource@...semi.com>
Subject: [PATCH V1] mfd: da9053: fix compiler warning message for
 uninitialised variable

From: Steve Twiss <stwiss.opensource@...semi.com>

Fix compiler warning caused by an uninitialised variable inside
da9052_group_write() function. Defaulting the value to zero covers
the trivial case.

Signed-off-by: Steve Twiss <stwiss.opensource@...semi.com>
Reported-by: Geert Uytterhoeven <geert@...ux-m68k.org>

---
Hi Lee,

This compiler warning was found and reported by Geert Uytterhoeven as
part of the "Build regressions/improvements in v4.7-rc5" thread.

- https://lkml.org/lkml/2016/6/27/126

Regards,
Steve


 include/linux/mfd/da9052/da9052.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/mfd/da9052/da9052.h b/include/linux/mfd/da9052/da9052.h
index c18a4c1..ce9230a 100644
--- a/include/linux/mfd/da9052/da9052.h
+++ b/include/linux/mfd/da9052/da9052.h
@@ -171,7 +171,7 @@ static inline int da9052_group_read(struct da9052 *da9052, unsigned char reg,
 static inline int da9052_group_write(struct da9052 *da9052, unsigned char reg,
 				      unsigned reg_cnt, unsigned char *val)
 {
-	int ret;
+	int ret = 0;
 	int i;
 
 	for (i = 0; i < reg_cnt; i++) {
-- 
end-of-patch for PATCH V1