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Btrfs: fix memory leak in btrfs_parse_early_options()
author
Ilya Dryomov
<idryomov@gmail.com>
Tue, 8 Nov 2011 14:47:55 +0000
(16:47 +0200)
committer
Ilya Dryomov
<idryomov@gmail.com>
Wed, 9 Nov 2011 20:53:38 +0000
(22:53 +0200)
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
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diff --git
a/fs/btrfs/super.c
b/fs/btrfs/super.c
index
dcd5aef
..
6befcaf
100644
(file)
--- 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: