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catch wrong load address passed to fatload / ext2load

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If filename is passed instead of address to ext2load or fatload,
u-boot silently accepts that, and uses 0 for load address and default
filename from environment. That is confusing, display help instead.

Signed-off-by: Pavel Machek <pavel@denx.de>
This commit is contained in:
Pavel Machek 2014-07-09 22:42:57 +02:00 committed by Tom Rini
parent 6b367467f1
commit 949bbd7c86
1 changed files with 4 additions and 1 deletions
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5
fs/fs.c
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@ -276,6 +276,7 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
unsigned long pos;
int len_read;
unsigned long time;
char *ep;
if (argc < 2)
return CMD_RET_USAGE;
@ -286,7 +287,9 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
return 1;
if (argc >= 4) {
addr = simple_strtoul(argv[3], NULL, 16);
addr = simple_strtoul(argv[3], &ep, 16);
if (ep == argv[3] || *ep != '\0')
return CMD_RET_USAGE;
} else {
addr_str = getenv("loadaddr");
if (addr_str != NULL)