[PATCH 4.4 47/86] ubifs: dent: Fix some potential memory leaks while iterating entries

[Greg Kroah-Hartman]

From: Zhihao Cheng <chengzhih...@huawei.com>

commit 58f6e78a65f1fcbf732f60a7478ccc99873ff3ba upstream.

Fix some potential memory leaks in error handling branches while
iterating dent entries. For example, function dbg_check_dir()
forgets to free pdent if it exists.

Signed-off-by: Zhihao Cheng <chengzhih...@huawei.com>
Cc: <sta...@vger.kernel.org>
Fixes: 1e51764a3c2ac05a2 ("UBIFS: add new flash file system")
Signed-off-by: Richard Weinberger <rich...@nod.at>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 fs/ubifs/debug.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -1125,6 +1125,7 @@ int dbg_check_dir(struct ubifs_info *c,
                        err = PTR_ERR(dent);
                        if (err == -ENOENT)
                                break;
+                       kfree(pdent);
                        return err;
                }