[PATCH] mtk-sd: reset host->mrq on prepare_data() error
Masami Hiramatsu (Google)
mhiramat at kernel.org
Wed Jun 25 01:22:56 PDT 2025
On Wed, 25 Jun 2025 14:20:37 +0900
Sergey Senozhatsky <senozhatsky at chromium.org> wrote:
> Do not leave host with dangling ->mrq pointer if we hit
> the msdc_prepare_data() error out path.
>
> Signed-off-by: Sergey Senozhatsky <senozhatsky at chromium.org>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat at kernel.org>
Thanks for fixing it.
> ---
> drivers/mmc/host/mtk-sd.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
> index b12cfb9a5e5f..d7020e06dd55 100644
> --- a/drivers/mmc/host/mtk-sd.c
> +++ b/drivers/mmc/host/mtk-sd.c
> @@ -1492,6 +1492,7 @@ static void msdc_ops_request(struct mmc_host *mmc, struct mmc_request *mrq)
> if (mrq->data) {
> msdc_prepare_data(host, mrq->data);
> if (!msdc_data_prepared(mrq->data)) {
> + host->mrq = NULL;
> /*
> * Failed to prepare DMA area, fail fast before
> * starting any commands.
> --
> 2.50.0.714.g196bf9f422-goog
>
--
Masami Hiramatsu (Google) <mhiramat at kernel.org>
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