Re: [PATCH] i2c-stm32f4: remove redundant initialization of pointer reg

From: Alexandre Torgue
Date: Tue Feb 27 2018 - 02:45:30 EST


Hi,

On 02/26/2018 09:06 PM, Wolfram Sang wrote:
On Tue, Jan 16, 2018 at 05:44:04PM +0000, Colin King wrote:
From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

The pointer reg is assigned a value that is never read, it is later
overwritten with a new value, hence the redundant initialization can
be removed.

Cleans up clang warning:
drivers/i2c/busses/i2c-stm32f4.c:352:16: warning: Value stored to 'reg'
during its initialization is never read

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Maxime? Alexandre? Are you OK with this patch?

Sorry for delay.

Acked-by: Alexandre TORGUE <alexandre.torgue@xxxxxx>

regards
alex


---
drivers/i2c/busses/i2c-stm32f4.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-stm32f4.c b/drivers/i2c/busses/i2c-stm32f4.c
index 47c8d00de53f..ba600d77a3f8 100644
--- a/drivers/i2c/busses/i2c-stm32f4.c
+++ b/drivers/i2c/busses/i2c-stm32f4.c
@@ -349,7 +349,7 @@ static void stm32f4_i2c_read_msg(struct stm32f4_i2c_dev *i2c_dev)
static void stm32f4_i2c_terminate_xfer(struct stm32f4_i2c_dev *i2c_dev)
{
struct stm32f4_i2c_msg *msg = &i2c_dev->msg;
- void __iomem *reg = i2c_dev->base + STM32F4_I2C_CR2;
+ void __iomem *reg;
stm32f4_i2c_disable_irq(i2c_dev);
--
2.15.1