2021-09-16 10:41:13

by Xiang wangx

Subject: [PATCH] i2c: s3c2410: Delete unneeded variable: "ret"

variable: "ret" defined but not used in function "i2c_s3c_irq_nextbyte"

Signed-off-by: Xiang wangx <[email protected]>
---
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;
}

/*
--
2.20.1

2021-09-16 10:54:52

by Krzysztof Kozlowski

Subject: Re: [PATCH] i2c: s3c2410: Delete unneeded variable: "ret"

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 <[email protected]>
> ---
> 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