diff options
Diffstat (limited to 'fs/btrfs/compression.c')
| -rw-r--r-- | fs/btrfs/compression.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 3e452525f8ad..083f9c485875 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -1111,8 +1111,9 @@ unsigned int btrfs_compress_str2level(const char *str) if (strncmp(str, "zlib", 4) != 0) return 0; - if ('1' <= str[4] && str[4] <= '9' ) - return str[4] - '0'; + /* Accepted form: zlib:1 up to zlib:9 and nothing left after the number */ + if (str[4] == ':' && '1' <= str[5] && str[5] <= '9' && str[6] == 0) + return str[5] - '0'; return 0; } |