From a90e8b6fb80db43b029e1e76205452afa8bdc77a Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@gmail.com>
Date: Tue, 8 Nov 2011 16:47:55 +0200
Subject: [PATCH] Btrfs: fix memory leak in btrfs_parse_early_options()
Don't leak subvol_name string in case multiple subvol= options are
given. "The lastest option is effective" behavior (consistent with
subvolid= and subvolrootid= options) is preserved.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
---
fs/btrfs/super.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index dcd5aef6b614..6befcaf253bd 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -448,6 +448,7 @@ static int btrfs_parse_early_options(const char *options, fmode_t flags,
token = match_token(p, tokens, args);
switch (token) {
case Opt_subvol:
+ kfree(*subvol_name);
*subvol_name = match_strdup(&args[0]);
break;
case Opt_subvolid:
--
2.30.2