[PATCH] mmc: dwmmc: return a proper error code when busy

[Jaehoon Chung]

Hi John,

On 1/12/22 1:15 AM, John Keeping wrote:
> When failing to send a command because the hardware is busy, return
> EBUSY to indicate the cause instead of just -1.
> 
> Signed-off-by: John Keeping <john at metanate.com>

Reviewed-by: Jaehoon Chung <jh80.chung at samsung.com>

Best Regards,
Jaehoon Chung

> ---
>  drivers/mmc/dw_mmc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
> index a949dad574..4232c5eb8c 100644
> --- a/drivers/mmc/dw_mmc.c
> +++ b/drivers/mmc/dw_mmc.c
> @@ -301,7 +301,7 @@ static int dwmci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
>  		flags = dwmci_set_transfer_mode(host, data);
>  
>  	if ((cmd->resp_type & MMC_RSP_136) && (cmd->resp_type & MMC_RSP_BUSY))
> -		return -1;
> +		return -EBUSY;
>  
>  	if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
>  		flags |= DWMCI_CMD_ABORT_STOP;
>