diff options
| author | Tero Roponen <tero.roponen@gmail.com> | 2010-12-27 16:43:13 +0800 |
|---|---|---|
| committer | Li Zefan <lizf@cn.fujitsu.com> | 2011-01-27 01:05:11 +0800 |
| commit | 3f3d0bc0df041236fad4ffa82188a6e4ef9af75e (patch) | |
| tree | b27b210a3c48e08e63d1ee69c9b4b7e86709e360 | |
| parent | bdc924bb4cdac92b945945c3149ab8191c92d75d (diff) | |
Btrfs: Free correct pointer after using strsep
We must save and free the original kstrdup()'ed pointer
because strsep() modifies its first argument.
Signed-off-by: Tero Roponen <tero.roponen@gmail.com>
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
| -rw-r--r-- | fs/btrfs/super.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index f50253c2279..78ee681465a 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -277,7 +277,7 @@ static int btrfs_parse_early_options(const char *options, fmode_t flags, struct btrfs_fs_devices **fs_devices) { substring_t args[MAX_OPT_ARGS]; - char *opts, *p; + char *opts, *orig, *p; int error = 0; int intarg; @@ -291,6 +291,7 @@ static int btrfs_parse_early_options(const char *options, fmode_t flags, opts = kstrdup(options, GFP_KERNEL); if (!opts) return -ENOMEM; + orig = opts; while ((p = strsep(&opts, ",")) != NULL) { int token; @@ -326,7 +327,7 @@ static int btrfs_parse_early_options(const char *options, fmode_t flags, } out_free_opts: - kfree(opts); + kfree(orig); out: /* * If no subvolume name is specified we use the default one. Allocate |