2014-07-05 12:10:51

by Rickard Strandqvist

Subject: [PATCH] video: backlight: jornada720_lcd.c: Cleaning up variable that is never used

From: Rickard Strandqvist <[email protected]>

Variable ar assigned a value that is never used.
I have also removed all the code that thereby serves no purpose.

This was found using a static code analysis program called cppcheck

Signed-off-by: Rickard Strandqvist <[email protected]>
---
drivers/video/backlight/jornada720_lcd.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/video/backlight/jornada720_lcd.c b/drivers/video/backlight/jornada720_lcd.c
index da3876c..b304319 100644
--- a/drivers/video/backlight/jornada720_lcd.c
+++ b/drivers/video/backlight/jornada720_lcd.c
@@ -56,12 +56,10 @@ static int jornada_lcd_get_contrast(struct lcd_device *ld)

static int jornada_lcd_set_contrast(struct lcd_device *ld, int value)
{
- int ret;
-
jornada_ssp_start();

/* start by sending our set contrast cmd to mcu */
- ret = jornada_ssp_byte(SETCONTRAST);
+ jornada_ssp_byte(SETCONTRAST);

/* push the new value */
if (jornada_ssp_byte(value) != TXDUMMY) {
--
1.7.10.4

2014-07-07 10:50:43

by Lee Jones

Subject: Re: [PATCH] video: backlight: jornada720_lcd.c: Cleaning up variable that is never used

On Sat, 05 Jul 2014, Rickard Strandqvist wrote:

> From: Rickard Strandqvist <[email protected]>
>
> Variable ar assigned a value that is never used.
> I have also removed all the code that thereby serves no purpose.
>
> This was found using a static code analysis program called cppcheck
>
> Signed-off-by: Rickard Strandqvist <[email protected]>
> ---
> drivers/video/backlight/jornada720_lcd.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)

Is this different from the patch I just NACKed?

> diff --git a/drivers/video/backlight/jornada720_lcd.c b/drivers/video/backlight/jornada720_lcd.c
> index da3876c..b304319 100644
> --- a/drivers/video/backlight/jornada720_lcd.c
> +++ b/drivers/video/backlight/jornada720_lcd.c
> @@ -56,12 +56,10 @@ static int jornada_lcd_get_contrast(struct lcd_device *ld)
>
> static int jornada_lcd_set_contrast(struct lcd_device *ld, int value)
> {
> - int ret;
> -
> jornada_ssp_start();
>
> /* start by sending our set contrast cmd to mcu */
> - ret = jornada_ssp_byte(SETCONTRAST);
> + jornada_ssp_byte(SETCONTRAST);
>
> /* push the new value */
> if (jornada_ssp_byte(value) != TXDUMMY) {

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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