[PATCH v2] remoteproc/mediatek: unprepare clk if scp_before_load fails

[Mathieu Poirier]

On Thu, Dec 03, 2020 at 11:04:36AM +0800, Tzung-Bi Shih wrote:
> Fixes the error handling to unprepare clk if scp_before_load fails.
> 
> Fixes: fd0b6c1ff85a4 ("remoteproc/mediatek: Add support for mt8192 SCP")

https://elixir.bootlin.com/linux/v5.10-rc6/source/Documentation/process/submitting-patches.rst#L122

> Signed-off-by: Tzung-Bi Shih <tzungbi at google.com>
> ---
> Changes from v1[1]:
> - add "Fixes" tag
> - remove an unneeded change
> 
> [1]: https://patchwork.kernel.org/project/linux-remoteproc/patch/20201202044537.2500497-1-tzungbi@google.com/
> 
>  drivers/remoteproc/mtk_scp.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
> index 5f42b9ce7185..5e5705fe35a8 100644
> --- a/drivers/remoteproc/mtk_scp.c
> +++ b/drivers/remoteproc/mtk_scp.c
> @@ -350,9 +350,10 @@ static int scp_load(struct rproc *rproc, const struct firmware *fw)
>  
>  	ret = scp->data->scp_before_load(scp);
>  	if (ret < 0)
> -		return ret;
> +		goto leave;
>  
>  	ret = scp_elf_load_segments(rproc, fw);
> +leave:
>  	clk_disable_unprepare(scp->clk);
>  
>  	return ret;
> -- 
> 2.29.2.454.gaff20da3a2-goog
>