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Btrfs: fix memory leak in btrfs_parse_early_options()

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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>
This commit is contained in:
Ilya Dryomov 2011-11-08 16:47:55 +02:00
parent 7fd2ae21a4
commit a90e8b6fb8
1 changed files with 1 additions and 0 deletions
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fs/btrfs/super.c
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@ -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: