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btrfs-progs: inspect: improved error handling

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Two remaining BUG_ON, be more specific what's wrong.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2016-09-07 14:36:14 +02:00
parent ad44d1eb17
commit 939bc6323b
1 changed files with 9 additions and 2 deletions
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11
cmds-inspect.c
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@ -207,7 +207,10 @@ static int cmd_inspect_logical_resolve(int argc, char **argv)
ret = snprintf(full_path, bytes_left, "%s/", argv[optind+1]);
path_ptr = full_path + ret;
bytes_left -= ret + 1;
BUG_ON(bytes_left < 0);
if (bytes_left < 0) {
error("path buffer too small: %d bytes", bytes_left);
goto out;
}
for (i = 0; i < inodes->elem_cnt; i += 3) {
u64 inum = inodes->val[i];
@ -230,8 +233,12 @@ static int cmd_inspect_logical_resolve(int argc, char **argv)
path_ptr[-1] = '/';
ret = snprintf(path_ptr, bytes_left, "%s",
name);
BUG_ON(ret >= bytes_left);
free(name);
if (ret >= bytes_left) {
error("path buffer too small: %d bytes",
bytes_left - ret);
goto out;
}
path_fd = btrfs_open_dir(full_path, &dirs, 1);
if (path_fd < 0) {
ret = -ENOENT;