commit 399a9feeac83c2f64138c438e41222a12dd71766
author Richard Weinberger <richard@nod.at> Fri Sep 26 23:08:15 2014 +0200
committer Richard Weinberger <richard@nod.at> Thu Mar 26 19:31:26 2015 +0100
tree eefbdfbc60f05d0224f7c41924aff270665eca36
parent 19371d73c9bd31a8e634ec5a80fc19fcd7714481

UBI: Fastmap: Ensure that all fastmap work is done upon WL shutdown

...otherwise the deferred work might run after datastructures
got freed and corrupt memory.

Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Guido Martínez <guido@vanguardiasur.com.ar>

drivers/mtd/ubi/wl.c

diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index ae174f4..bf66890 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1856,6 +1856,9 @@
  */
 static void shutdown_work(struct ubi_device *ubi)
 {
+#ifdef CONFIG_MTD_UBI_FASTMAP
+	flush_work(&ubi->fm_work);
+#endif
 	while (!list_empty(&ubi->works)) {
 		struct ubi_work *wrk;