From cd0f36c105bfea7ef0e926779b354337d00b29ff Mon Sep 17 00:00:00 2001
From: johnniealan <johnniealan@gmail.com>
Date: Thu, 29 Jan 2015 12:10:24 -0500
Subject: [PATCH] Update mmc_cmds.c

Variable 'reg' is declared as u8 in line 638  but 32bit value is copied to 'reg' in line 802. This will make it overflow.
---
 mmc_cmds.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mmc_cmds.c b/mmc_cmds.c
index cb716ec..42810ed 100644
--- a/mmc_cmds.c
+++ b/mmc_cmds.c
@@ -635,7 +635,8 @@ int do_enh_area_set(int nargs, char **argv)
 
 int do_read_extcsd(int nargs, char **argv)
 {
-	__u8 ext_csd[512], ext_csd_rev, reg;
+	__u8 ext_csd[512], ext_csd_rev;
+	__u32 reg;
 	int fd, ret;
 	char *device;
 	const char *str;