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[PATCH 4.3 058/200] mtd: ubi: dont leak e if schedule_erase() fails

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  [PATCH 4.3 058/200] mtd: ubi: dont leak e if schedule_erase() fails Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-15 01:10 +0100

#1333931 — [PATCH 4.3 058/200] mtd: ubi: dont leak e if schedule_erase() fails

4.3-stable review patch.  If anyone has any objections, please let me know.

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

From: Sebastian Siewior <bigeasy@linutronix.de>

commit 6b238de189f69dc77d660d4cce62eed15547f4c3 upstream.

If __erase_worker() fails to erase the EB and schedule_erase() fails as
well to do anything about it then we go RO. But that is not a reason to
leak the e argument here. Therefore clean up e.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1060,6 +1060,7 @@ static int __erase_worker(struct ubi_dev
 		/* Re-schedule the LEB for erasure */
 		err1 = schedule_erase(ubi, e, vol_id, lnum, 0);
 		if (err1) {
+			wl_entry_destroy(ubi, e);
 			err = err1;
 			goto out_ro;
 		}

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