Btrfs-progs: switch to arg_strtou64() part3

[platform/upstream/btrfs-progs.git] / btrfs-show-super.c

diff --git a/btrfs-show-super.c b/btrfs-show-super.c
index b87f16a..d4df0ac 100644 (file)
--- a/btrfs-show-super.c
+++ b/btrfs-show-super.c
@@ -59,17 +59,17 @@ int main(int argc, char **argv)
        int all = 0;
        char *filename;
        int fd = -1;
-       int arg, i;
+       int i;
+       u64 arg;
        u64 sb_bytenr = btrfs_sb_offset(0);
 
        while ((opt = getopt(argc, argv, "ai:")) != -1) {
                switch (opt) {
                case 'i':
-                       arg = atoi(optarg);
-
-                       if (arg < 0 || arg >= BTRFS_SUPER_MIRROR_MAX) {
+                       arg = arg_strtou64(optarg);
+                       if (arg >= BTRFS_SUPER_MIRROR_MAX) {
                                fprintf(stderr,
-                                       "Illegal super_mirror %d\n",
+                                       "Illegal super_mirror %llu\n",
                                        arg);
                                print_usage();
                                exit(1);