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cmd_usb.c: show cmd usage if no args given
author
Serge Ziryukin
<ftrvxmtrx@gmail.com>
Sun, 25 Apr 2010 18:32:36 +0000
(21:32 +0300)
committer
Wolfgang Denk
<wd@denx.de>
Thu, 6 May 2010 21:35:34 +0000
(23:35 +0200)
Signed-off-by: Serge Ziryukin <ftrvxmtrx@gmail.com>
common/cmd_usb.c
patch
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diff --git
a/common/cmd_usb.c
b/common/cmd_usb.c
index
ee3755c
..
fcb5f76
100644
(file)
--- a/
common/cmd_usb.c
+++ b/
common/cmd_usb.c
@@
-516,6
+516,11
@@
int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
block_dev_desc_t *stor_dev;
#endif
block_dev_desc_t *stor_dev;
#endif
+ if (argc < 2) {
+ cmd_usage(cmdtp);
+ return 1;
+ }
+
if ((strncmp(argv[1], "reset", 5) == 0) ||
(strncmp(argv[1], "start", 5) == 0)) {
usb_stop();
if ((strncmp(argv[1], "reset", 5) == 0) ||
(strncmp(argv[1], "start", 5) == 0)) {
usb_stop();