diff options
Diffstat (limited to 'extras/volume_id/vol_id.c')
| -rw-r--r-- | extras/volume_id/vol_id.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/extras/volume_id/vol_id.c b/extras/volume_id/vol_id.c index 60428ab582..b3f810fc9d 100644 --- a/extras/volume_id/vol_id.c +++ b/extras/volume_id/vol_id.c @@ -134,7 +134,7 @@ int main(int argc, char *argv[]) { "export", 0, NULL, 'x' }, { "skip-raid", 0, NULL, 's' }, { "probe-all", 0, NULL, 'a' }, - { "offset", 1, NULL, 'o' }, + { "offset", 2, NULL, 'o' }, { "help", 0, NULL, 'h' }, {} }; @@ -196,7 +196,8 @@ int main(int argc, char *argv[]) probe_all = 1; break; case 'o': - offset = strtoull(optarg, NULL, 0); + if (optarg[0] != '\0') + offset = strtoull(optarg, NULL, 0); break; case 'h': printf("Usage: vol_id [options] <device>\n" |