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>
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 1776dbd..9e2c9ec 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -260,7 +260,7 @@ 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;
@@ -275,6 +275,8 @@ static int btrfs_parse_early_options(const char *options,
fmode_t flags,
if (!opts)
return -ENOMEM;
+ orig = opts;
+
while ((p = strsep(&opts, ",")) != NULL) {
int token;
if (!*p)
@@ -309,7 +311,7 @@ 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
--
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