On 16/09/2021 12:37, Xiang wangx wrote: > variable: "ret" defined but not used in function "i2c_s3c_irq_nextbyte" > > Signed-off-by: Xiang wangx <wangxiang@xxxxxxxxxx> > --- > drivers/i2c/busses/i2c-s3c2410.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c > index b49a1b170bb2..6df85b23156c 100644 > --- a/drivers/i2c/busses/i2c-s3c2410.c > +++ b/drivers/i2c/busses/i2c-s3c2410.c > @@ -385,7 +385,6 @@ static int i2c_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) > { > unsigned long tmp; > unsigned char byte; > - int ret = 0; > > switch (i2c->state) { > > @@ -548,7 +547,7 @@ static int i2c_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) > tmp &= ~S3C2410_IICCON_IRQPEND; > writel(tmp, i2c->regs + S3C2410_IICCON); > out: > - return ret; > + return 0; Change is okay but I would go step further - made the function return void(). None of the callers check for return so no functionality is lost. Best regards, Krzysztof