[PATCH] mmc: fix improper use of memset

[Sam Edwards]

Buffers created through DEFINE_(CACHE_)ALIGN_BUFFER are actually
pointers to the real underlying buffer. Using sizeof(...) is
not appropriate in this case.

Signed-off-by: Sam Edwards <CFSworks at gmail.com>
---

 drivers/mmc/mmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 1af6af82e6..72c1076c56 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -2262,7 +2262,7 @@ static int mmc_startup_v4(struct mmc *mmc)
 		return 0;
 
 	if (!mmc->ext_csd)
-		memset(ext_csd_bkup, 0, sizeof(ext_csd_bkup));
+		memset(ext_csd_bkup, 0, MMC_MAX_BLOCK_LEN);
 
 	err = mmc_send_ext_csd(mmc, ext_csd);
 	if (err)
-- 
2.39.2