From: Haijun.Zhang Date: Thu, 31 Oct 2013 01:38:18 +0000 (+0800) Subject: esdhc: memset mmc struct before putting into use X-Git-Tag: v2014.01-rc1~181 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=a54d68113261ad5da8ff43fd0d5ed811fb1d361d;p=oweals%2Fu-boot.git esdhc: memset mmc struct before putting into use struct mmc should be clear to all '0' after malloc to avoid unexpect variable value. Like mmc->has_init = xxx. In this case mmcinfo will believe the card had been initialized before and skip the initialization. Test on P5040 and T4240, Error Log: => mmcinfo Device: FSL_SDHC Manufacturer ID: 0 OEM: 0 Name: Tran Speed: 0 Rd Block Len: 0 MMC version 0.0 High Capacity: No Capacity: 0 Bytes Bus Width: 0-bit => Signed-off-by: Haijun Zhang Signed-off-by: Xie Shaohui-B21989 Tested-by: Ryan Barnett Acked-by: Pantelis Antoniou --- diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index a9fe911c8b..1f9c305131 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -533,6 +533,7 @@ int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg) if (!mmc) return -ENOMEM; + memset(mmc, 0, sizeof(struct mmc)); sprintf(mmc->name, "FSL_SDHC"); regs = (struct fsl_esdhc *)cfg->esdhc_base;