ext4: release page cache in ext4_mb_load_buddy error path

BugLink: http://bugs.launchpad.net/bugs/793702

commit 26626f1172fb4f3f323239a6a5cf4e082643fa46 upstream.

Add missing page_cache_release in the error path of ext4_mb_load_buddy

Signed-off-by: Yang Ruirui <ruirui.r.yang@tieto.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index d1fe09a..1738236 100644 (file)
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -1268,6 +1268,8 @@ repeat_load_buddy:
        return 0;
 
 err:
+       if (page)
+               page_cache_release(page);
        if (e4b->bd_bitmap_page)
                page_cache_release(e4b->bd_bitmap_page);
        if (e4b->bd_buddy_page)