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[09/35] media: v4l: async: refactor v4l2_async_create_ancillary_links

Message ID 20240415-fix-cocci-v1-9-477afb23728b@chromium.org
State Handled Elsewhere
Headers show
Series media: Fix coccinelle warning/errors | expand

Commit Message

Ricardo Ribalda April 15, 2024, 7:34 p.m. UTC 
Return 0 without checking IS_ERR or PTR_ERR if CONFIG_MEDIA_CONTROLLER
is not enabled.

This makes cocci happier:

drivers/media/v4l2-core/v4l2-async.c:331:23-30: ERROR: PTR_ERR applied after initialization to constant on line 319

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
---
 drivers/media/v4l2-core/v4l2-async.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Dan Carpenter April 16, 2024, 7:44 a.m. UTC | #1 
On Mon, Apr 15, 2024 at 07:34:26PM +0000, Ricardo Ribalda wrote:
> Return 0 without checking IS_ERR or PTR_ERR if CONFIG_MEDIA_CONTROLLER
> is not enabled.
> 
> This makes cocci happier:
> 
> drivers/media/v4l2-core/v4l2-async.c:331:23-30: ERROR: PTR_ERR applied after initialization to constant on line 319
> 
> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> ---
>  drivers/media/v4l2-core/v4l2-async.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
> index 4bb073587817..e26a011c89c4 100644
> --- a/drivers/media/v4l2-core/v4l2-async.c
> +++ b/drivers/media/v4l2-core/v4l2-async.c
> @@ -316,9 +316,8 @@ v4l2_async_nf_try_all_subdevs(struct v4l2_async_notifier *notifier);
>  static int v4l2_async_create_ancillary_links(struct v4l2_async_notifier *n,
>  					     struct v4l2_subdev *sd)
>  {
> -	struct media_link *link = NULL;
> -
>  #if IS_ENABLED(CONFIG_MEDIA_CONTROLLER)
> +	struct media_link *link;
>  

I think another way you could write this is to remove the #ifs...

	struct media_link *link;

	if (!IS_ENABLED(CONFIG_MEDIA_CONTROLLER))
		return 0;

	if (sd->entity.function != MEDIA_ENT_F_LENS && ...

regards,
dan carpenter

>  	if (sd->entity.function != MEDIA_ENT_F_LENS &&
>  	    sd->entity.function != MEDIA_ENT_F_FLASH)
> @@ -326,9 +325,10 @@ static int v4l2_async_create_ancillary_links(struct v4l2_async_notifier *n,
>  
>  	link = media_create_ancillary_link(&n->sd->entity, &sd->entity);
>  
> -#endif
> -
>  	return IS_ERR(link) ? PTR_ERR(link) : 0;
> +#else
> +	return 0;
> +#endif
>  }
>
diff mbox series

Patch

diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index 4bb073587817..e26a011c89c4 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -316,9 +316,8 @@  v4l2_async_nf_try_all_subdevs(struct v4l2_async_notifier *notifier);
 static int v4l2_async_create_ancillary_links(struct v4l2_async_notifier *n,
 					     struct v4l2_subdev *sd)
 {
-	struct media_link *link = NULL;
-
 #if IS_ENABLED(CONFIG_MEDIA_CONTROLLER)
+	struct media_link *link;
 
 	if (sd->entity.function != MEDIA_ENT_F_LENS &&
 	    sd->entity.function != MEDIA_ENT_F_FLASH)
@@ -326,9 +325,10 @@  static int v4l2_async_create_ancillary_links(struct v4l2_async_notifier *n,
 
 	link = media_create_ancillary_link(&n->sd->entity, &sd->entity);
 
-#endif
-
 	return IS_ERR(link) ? PTR_ERR(link) : 0;
+#else
+	return 0;
+#endif
 }
 
 static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,