Re: [PATCH] gpu: drm: Optimize the unused variable ret

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On 19/06/2023 13:31, Li Dong wrote:
> Use zero as the return value instead of the unused variable ret
> 
> Signed-off-by: Li Dong <lidong@xxxxxxxx>
> ---
>  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> index 102e1fc7ee38..fec0d014fd0e 100644
> --- a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> +++ b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> @@ -66,7 +66,6 @@ static void s6d7aa0_reset(struct s6d7aa0 *ctx)
>  static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)
>  {
>  	struct mipi_dsi_device *dsi = ctx->dsi;
> -	int ret = 0;
>  
>  	if (lock) {
>  		mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD1, 0xa5, 0xa5);
> @@ -80,7 +79,7 @@ static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)
>  			mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD3, 0xa5, 0xa5);
>  	}
>  
> -	return ret;
> +	return 0;
>  }
>  
>  static int s6d7aa0_on(struct s6d7aa0 *ctx)

Commit "drm/panel: s6d7aa0: remove the unneeded variable in
s6d7aa0_lock"[1] already does this.

Best regards
Artur

[1] https://cgit.freedesktop.org/drm/drm-misc/commit/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c?id=c5dacfe2e6c1251276e29b4cdac771f504593523



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