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authorShinya Kuribayashi <shinya.kuribayashi@necel.com>2007-12-27 15:39:54 +0900
committerWolfgang Denk <wd@denx.de>2008-01-09 21:36:29 +0100
commitb9173af73e524d37c812f210173cf83385c5171a (patch)
tree6ddb455d29111ffe66833a12bdbaa1038c737559 /common
parent3b93020d74630f0574cbd26d200a82c00dd11eaa (diff)
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common/cmd_mii.c: Add sanity argc check
If type mii command without arguments, we suffer from uninitialized argv[] entries; for example we MIPS get stuck by TLB error. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Diffstat (limited to 'common')
-rw-r--r--common/cmd_mii.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/common/cmd_mii.c b/common/cmd_mii.c
index f530a38..079612a 100644
--- a/common/cmd_mii.c
+++ b/common/cmd_mii.c
@@ -438,6 +438,11 @@ 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_MCF532x)
mii_init ();
#endif