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media: verisilicon: Free post processor buffers on error

Message ID 20250425192447.227063-1-detlev.casanova@collabora.com
State New
Headers show
Series media: verisilicon: Free post processor buffers on error | expand

Commit Message

Detlev Casanova April 25, 2025, 7:24 p.m. UTC
When initializing the post processor, it allocates the same number of
buffers as the buf queue.
As the init function is called in streamon(), if an allocation fails,
streamon will return an error and streamoff() will not be called, keeping
all post processor buffers allocated.

To avoid that, all post proc buffers are freed in case of an allocation
error.

Fixes: 26711491a807 ("media: verisilicon: Refactor postprocessor to store more buffers")
Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
---
 drivers/media/platform/verisilicon/hantro_postproc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Comments

Nicolas Dufresne April 28, 2025, 5:25 p.m. UTC | #1
Le vendredi 25 avril 2025 à 15:24 -0400, Detlev Casanova a écrit :
> When initializing the post processor, it allocates the same number of

What do you think reworking as:

  During initialization, the post processor allocates the same number of

> buffers as the buf queue.
> As the init function is called in streamon(), if an allocation fails,
> streamon will return an error and streamoff() will not be called, keeping
> all post processor buffers allocated.
> 
> To avoid that, all post proc buffers are freed in case of an allocation
> error.
> 
> Fixes: 26711491a807 ("media: verisilicon: Refactor postprocessor to store more buffers")
> Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>

Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>

If you are fine with the suggestion, I can make the changes while
applying.

> ---
>  drivers/media/platform/verisilicon/hantro_postproc.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/verisilicon/hantro_postproc.c b/drivers/media/platform/verisilicon/hantro_postproc.c
> index c435a393e0cb7..9f559a13d409b 100644
> --- a/drivers/media/platform/verisilicon/hantro_postproc.c
> +++ b/drivers/media/platform/verisilicon/hantro_postproc.c
> @@ -250,8 +250,10 @@ int hantro_postproc_init(struct hantro_ctx *ctx)
>  
>  	for (i = 0; i < num_buffers; i++) {
>  		ret = hantro_postproc_alloc(ctx, i);
> -		if (ret)
> +		if (ret) {
> +			hantro_postproc_free(ctx);
>  			return ret;
> +		}
>  	}
>  
>  	return 0;
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Patch

diff --git a/drivers/media/platform/verisilicon/hantro_postproc.c b/drivers/media/platform/verisilicon/hantro_postproc.c
index c435a393e0cb7..9f559a13d409b 100644
--- a/drivers/media/platform/verisilicon/hantro_postproc.c
+++ b/drivers/media/platform/verisilicon/hantro_postproc.c
@@ -250,8 +250,10 @@  int hantro_postproc_init(struct hantro_ctx *ctx)
 
 	for (i = 0; i < num_buffers; i++) {
 		ret = hantro_postproc_alloc(ctx, i);
-		if (ret)
+		if (ret) {
+			hantro_postproc_free(ctx);
 			return ret;
+		}
 	}
 
 	return 0;