From: Wolfgang Denk <wd@pollux.denx.de>
Date: Fri, 21 Jul 2006 09:20:46 +0000 (+0200)
Subject: Check argument count in "mii" command.
X-Git-Tag: U-Boot-1_1_5~90
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=311d802790d987e7ce04f5b0dd0527cc8a6c09e6;p=u-boot

Check argument count in "mii" command.
Problem pointed out by Andrew Dyer, 13 Jun 2005
---

diff --git a/CHANGELOG b/CHANGELOG
index 41fd312f8b..4f6da77a69 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,9 @@
 Changes since U-Boot 1.1.4:
 ======================================================================
 
+* Check argument count in "mii" command.
+  Problem pointed out by Andrew Dyer, 13 Jun 2005
+
 * Cleanup TQM5200 board configurations:
   - make highboot configurations use environment at high end, too,
     to avoid flash fragmentation
diff --git a/common/cmd_mii.c b/common/cmd_mii.c
index 48a4e77c55..ee5e43ee8c 100644
--- a/common/cmd_mii.c
+++ b/common/cmd_mii.c
@@ -57,6 +57,11 @@ int do_mii (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	int		rcode = 0;
 	char		*devname;
 
+	if (argc < 2) {
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
 #if defined(CONFIG_8xx) || defined(CONFIG_MCF52x2)
 	mii_init ();
 #endif