[81/98] UBI: fix memory leak in update path

[Greg KH]

2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Artem Bityutskiy <Artem.Bityutskiy@xxxxxxxxx>

commit ebddd63b74dcf1cb676d14328d5852f1fee19a8a upstream.

When truncating an UBI volume, UBI should allocates a PEB-sized
buffer but does not release it, which leads to memory leaks.
This patch fixes the issue.

Reported-by: Marek Skuczynski <mareksk7@xxxxxxxxx>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@xxxxxxxxx>
Tested-by: Marek Skuczynski <mareksk7@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 drivers/mtd/ubi/upd.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/mtd/ubi/upd.c
+++ b/drivers/mtd/ubi/upd.c
@@ -155,6 +155,7 @@ int ubi_start_update(struct ubi_device *
 		if (err)
 			return err;
 		vol->updating = 0;
+		return 0;
 	}
 
 	vol->upd_buf = vmalloc(ubi->leb_size);


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