diff options
Diffstat (limited to 'common/cmd_usb.c')
| -rw-r--r-- | common/cmd_usb.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/common/cmd_usb.c b/common/cmd_usb.c index 6b5c582550..ee3755c121 100644 --- a/common/cmd_usb.c +++ b/common/cmd_usb.c @@ -387,7 +387,7 @@ int do_usbboot(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) dev = simple_strtoul(boot_device, &ep, 16); stor_dev = usb_stor_get_dev(dev); - if (stor_dev->type == DEV_TYPE_UNKNOWN) { + if (stor_dev == NULL || stor_dev->type == DEV_TYPE_UNKNOWN) { printf("\n** Device %d not available\n", dev); return 1; } @@ -595,8 +595,10 @@ int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) if (strncmp(argv[1], "part", 4) == 0) { int devno, ok = 0; if (argc == 2) { - for (devno = 0; devno < USB_MAX_STOR_DEV; ++devno) { + for (devno = 0; ; ++devno) { stor_dev = usb_stor_get_dev(devno); + if (stor_dev == NULL) + break; if (stor_dev->type != DEV_TYPE_UNKNOWN) { ok++; if (devno) @@ -608,7 +610,8 @@ int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) } else { devno = simple_strtoul(argv[2], NULL, 16); stor_dev = usb_stor_get_dev(devno); - if (stor_dev->type != DEV_TYPE_UNKNOWN) { + if (stor_dev != NULL && + stor_dev->type != DEV_TYPE_UNKNOWN) { ok++; debug("print_part of %x\n", devno); print_part(stor_dev); @@ -668,12 +671,12 @@ int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) if (argc == 3) { int dev = (int)simple_strtoul(argv[2], NULL, 10); printf("\nUSB device %d: ", dev); - if (dev >= USB_MAX_STOR_DEV) { + stor_dev = usb_stor_get_dev(dev); + if (stor_dev == NULL) { printf("unknown device\n"); return 1; } printf("\n Device %d: ", dev); - stor_dev = usb_stor_get_dev(dev); dev_print(stor_dev); if (stor_dev->type == DEV_TYPE_UNKNOWN) return 1; |