[PATCH] media: dvbdev: remove redundant initialization of variable ret

[PATCH] media: dvbdev: remove redundant initialization of variable ret

[Colin Ian King]

Variable ret is being ininitialized with a value that is never read.
The ininitializtion is redundant and can be removed. Move the variable
to the scope it is required.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
---
 drivers/media/dvb-core/dvbdev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index 675d877a67b2..d5a142ef9876 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -243,7 +243,7 @@ static void dvb_media_device_free(struct dvb_device *dvbdev)
 static int dvb_create_tsout_entity(struct dvb_device *dvbdev,
 				    const char *name, int npads)
 {
-	int i, ret = 0;
+	int i;
 
 	dvbdev->tsout_pads = kcalloc(npads, sizeof(*dvbdev->tsout_pads),
 				     GFP_KERNEL);
@@ -260,6 +260,7 @@ static int dvb_create_tsout_entity(struct dvb_device *dvbdev,
 	for (i = 0; i < npads; i++) {
 		struct media_pad *pads = &dvbdev->tsout_pads[i];
 		struct media_entity *entity = &dvbdev->tsout_entity[i];
+		int ret;
 
 		entity->name = kasprintf(GFP_KERNEL, "%s #%d", name, i);
 		if (!entity->name)
-- 
2.35.1

Re: [PATCH] media: dvbdev: remove redundant initialization of variable ret

[Dan Carpenter]

On Sun, Apr 24, 2022 at 04:47:20PM +0100, Colin Ian King wrote:
> Variable ret is being ininitialized with a value that is never read.
> The ininitializtion is redundant and can be removed. Move the variable
> to the scope it is required.
> 
> Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
> ---
>  drivers/media/dvb-core/dvbdev.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
> index 675d877a67b2..d5a142ef9876 100644
> --- a/drivers/media/dvb-core/dvbdev.c
> +++ b/drivers/media/dvb-core/dvbdev.c
> @@ -243,7 +243,7 @@ static void dvb_media_device_free(struct dvb_device *dvbdev)
>  static int dvb_create_tsout_entity(struct dvb_device *dvbdev,
>  				    const char *name, int npads)
>  {
> -	int i, ret = 0;
> +	int i;

It's better when "ret" has function scope.  Otherwise in the future
when someone adds a "ret" you're going to end up with two "ret"
variables.

regards,
dan carpenter