[U-Boot] [PATCH] tbs2910: Fix error handling in board_mmc_init()

[Stefano Babic <sbabic@denx.de>]

Hi Soeren,

On 20/11/2014 13:03, Soeren Moch wrote:
> When an invalid USDHC port is passed we should return -EINVAL instead of 0.
> Also, return the error immediately on fsl_esdhc_initialize() failure.
> 
> Based on similar patches by Fabio Estevam for mx6sabresd, mx53loco, wandboard
> 
> Signed-off-by: Soeren Moch <smoch@web.de>
> --
> Cc: Stefano Babic <sbabic@denx.de>
> Cc: Fabio Estevam <festevam@gmail.com>
> ---
>  board/tbs/tbs2910/tbs2910.c | 13 ++++++-------
>  1 file changed, 6 insertions(+), 7 deletions(-)
> 
> diff --git a/board/tbs/tbs2910/tbs2910.c b/board/tbs/tbs2910/tbs2910.c
> index daf8ff4..dfa430e 100644
> --- a/board/tbs/tbs2910/tbs2910.c
> +++ b/board/tbs/tbs2910/tbs2910.c
> @@ -219,15 +219,13 @@ int board_mmc_getcd(struct mmc *mmc)
>  
>  int board_mmc_init(bd_t *bis)
>  {
> -	s32 status = 0;
> -	int i;
> -
>  	/*
>  	 * (U-boot device node)    (Physical Port)
>  	 * mmc0                    SD2
>  	 * mmc1                    SD3
>  	 * mmc2                    eMMC
>  	 */
> +	int i, ret;
>  	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
>  		switch (i) {
>  		case 0:
> @@ -251,12 +249,13 @@ int board_mmc_init(bd_t *bis)
>  			printf("Warning: you configured more USDHC controllers"
>  			       "(%d) then supported by the board (%d)\n",
>  			       i + 1, CONFIG_SYS_FSL_USDHC_NUM);
> -			return status;
> +			return -EINVAL;
>  		}
> -
> -		status |= fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
> +		ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
> +		if (ret)
> +			return ret;
>  	}
> -	return status;
> +	return 0;
>  }
>  #endif /* CONFIG_FSL_ESDHC */
>  
> 

ok, I'll merge in the next iteration.

Acked-by: Stefano Babic <sbabic@denx.de>

Best regards,
Stefano Babic

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