diff options
| -rw-r--r-- | common/cmd_mmc.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c index da5fef9db9..e118252394 100644 --- a/common/cmd_mmc.c +++ b/common/cmd_mmc.c @@ -314,11 +314,18 @@ static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } else if (strcmp(argv[1], "bootpart") == 0) { int dev; - dev = simple_strtoul(argv[2], NULL, 10); + struct *mmc; + u32 bootsize, rpmbsize; - u32 bootsize = simple_strtoul(argv[3], NULL, 10); - u32 rpmbsize = simple_strtoul(argv[4], NULL, 10); - struct mmc *mmc = find_mmc_device(dev); + if (argc == 5) { + dev = simple_strtoul(argv[2], NULL, 10); + bootsize = simple_strtoul(argv[3], NULL, 10); + rpmbsize = simple_strtoul(argv[4], NULL, 10); + } else { + return CMD_RET_USAGE; + } + + mmc = find_mmc_device(dev); if (!mmc) { printf("no mmc device at slot %x\n", dev); return 1; |