From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Date: Tue, 31 May 2011 05:40:40 +0000 (+0300)
Subject: UBIFS: fix memory leak on error path
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=812eb258311f89bcd664a34a620f249d54a2cd83;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

UBIFS: fix memory leak on error path

UBIFS leaks memory on error path in 'ubifs_jnl_update()' in case of write
failure because it forgets to free the 'struct ubifs_dent_node *dent' object.
Although the object is small, the alignment can make it large - e.g., 2KiB
if the min. I/O unit is 2KiB.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Cc: stable@kernel.org
---

diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index 34b1679e6e3a..cef0460f4c54 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -669,6 +669,7 @@ out_free:
 
 out_release:
 	release_head(c, BASEHD);
+	kfree(dent);
 out_ro:
 	ubifs_ro_mode(c, err);
 	if (last_reference)