* [PATCH AUTOSEL 4.19 101/237] rtc: s35390a: Change buf's type to u8 in s35390a_init
[not found] <20191116154113.7417-1-sashal@kernel.org>
@ 2019-11-16 15:38 ` Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2019-11-16 15:38 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Nathan Chancellor, Alexandre Belloni, Sasha Levin, linux-rtc,
clang-built-linux
From: Nathan Chancellor <natechancellor@gmail.com>
[ Upstream commit ef0f02fd69a02b50e468a4ddbe33e3d81671e248 ]
Clang warns:
drivers/rtc/rtc-s35390a.c:124:27: warning: implicit conversion from
'int' to 'char' changes value from 192 to -64 [-Wconstant-conversion]
buf = S35390A_FLAG_RESET | S35390A_FLAG_24H;
~ ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
1 warning generated.
Update buf to be an unsigned 8-bit integer, which matches the buf member
in struct i2c_msg.
https://github.com/ClangBuiltLinux/linux/issues/145
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/rtc/rtc-s35390a.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c
index 77feb603cd4c0..3c64dbb08109a 100644
--- a/drivers/rtc/rtc-s35390a.c
+++ b/drivers/rtc/rtc-s35390a.c
@@ -108,7 +108,7 @@ static int s35390a_get_reg(struct s35390a *s35390a, int reg, char *buf, int len)
static int s35390a_init(struct s35390a *s35390a)
{
- char buf;
+ u8 buf;
int ret;
unsigned initcount = 0;
--
2.20.1
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