Re: [PATCH] [media] vcodev: mediatek: add missing include in JPEG decoder driver

[Hans Verkuil <hverkuil@xs4all.nl>]

On 03/12/2017 09:13 PM, Jérémy Lefaure wrote:
> The driver uses kzalloc and kfree functions. So it should include
> linux/slab.h. This header file is implicitly included by v4l2-common.h
> if CONFIG_SPI is enabled. But when it is disabled, slab.h is not
> included. In this case, the driver does not compile:
> 
> drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c: In function ‘mtk_jpeg_open’:
> drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c:1017:8: error: implicit
> declaration of function ‘kzalloc’
> [-Werror=implicit-function-declaration]
>   ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
>         ^~~~~~~
> drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c:1017:6: warning:
> assignment makes pointer from integer without a cast [-Wint-conversion]
>   ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
>       ^
> drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c:1047:2: error: implicit
> declaration of function ‘kfree’ [-Werror=implicit-function-declaration]
>   kfree(ctx);
>   ^~~~~
> 
> This patch adds the missing include to fix this issue.

Thanks for the patch, but someone else made the same fix already and it is
queued up for 4.12.

Regards,

	Hans

> 
> Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
> ---
>  drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
> index b10183f7942b..f9bd58ce7d32 100644
> --- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
> +++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
> @@ -22,6 +22,7 @@
>  #include <linux/of_platform.h>
>  #include <linux/platform_device.h>
>  #include <linux/pm_runtime.h>
> +#include <linux/slab.h>
>  #include <linux/spinlock.h>
>  #include <media/v4l2-event.h>
>  #include <media/v4l2-mem2mem.h>
>