From: Artem Bityutskiy <dedekind1@gmail.com>
To: MTD Maling List <linux-mtd@lists.infradead.org>
Subject: [PATCH] UBIFS: fix budget leak in error path
Date: Tue, 21 Oct 2014 10:13:51 +0300
Message-Id: <1413875631-7115-1-git-send-email-dedekind1@gmail.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>

From: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

We forgot to free the budget in 'write_begin_slow()' when 'do_readpage()'
fails. This patch fixes the issue.

Suggested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 fs/ubifs/file.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index b5b593c..538519e 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -262,6 +262,7 @@ static int write_begin_slow(struct address_space *mapping,
 			if (err) {
 				unlock_page(page);
 				page_cache_release(page);
+				ubifs_release_budget(c, &req);
 				return err;
 			}
 		}
-- 
1.9.3