From: Tero Roponen <tero.ropo...@gmail.com>
We must save and free the original kstrdup()'ed pointer
because strsep() modifies its first argument.
Signed-off-by: Tero Roponen <tero.ropo...@gmail.com>
Signed-off-by: Li Zefan <l...@cn.fujitsu.com>
---
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 f50253c..78ee681 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
--
1.6.3
--
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