[PATCH] mmc/core: free mmc_card when cmd 3, 9, 7 got failed in mmc_sd_init_card

Chris Ball cjb at laptop.org
Sun Aug 25 02:53:50 UTC 2013


Hi Wei,

On Wed, Jul 17 2013, wei_wang at realsil.com.cn wrote:
> From: Wei WANG <wei_wang at realsil.com.cn>
>
> In function mmc_sd_init_card, if command 3/9/7 got failed, mmc_card
> allocated just before won't be freed. This would cause memory leak.
>
> Signed-off-by: Wei WANG <wei_wang at realsil.com.cn>
> ---
>  drivers/mmc/core/sd.c |    6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
> index 176d125..1240a85 100644
> --- a/drivers/mmc/core/sd.c
> +++ b/drivers/mmc/core/sd.c
> @@ -942,13 +942,13 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
>  	if (!mmc_host_is_spi(host)) {
>  		err = mmc_send_relative_addr(host, &card->rca);
>  		if (err)
> -			return err;
> +			goto free_card;
>  	}
>  
>  	if (!oldcard) {
>  		err = mmc_sd_get_csd(host, card);
>  		if (err)
> -			return err;
> +			goto free_card;
>  
>  		mmc_decode_cid(card);
>  	}
> @@ -959,7 +959,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
>  	if (!mmc_host_is_spi(host)) {
>  		err = mmc_select_card(card);
>  		if (err)
> -			return err;
> +			goto free_card;
>  	}
>  
>  	err = mmc_sd_setup_card(host, card, oldcard != NULL);

Thanks, pushed to mmc-next for 3.12.

- Chris.
-- 
Chris Ball   <cjb at laptop.org>   <http://printf.net/>


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