[PATCH 3/6] UBI: Fastmap: Ensure that all fastmap work is done upon WL shutdown

From: Richard Weinberger
Date: Mon Nov 24 2014 - 08:22:56 EST


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

Signed-off-by: Richard Weinberger <richard@xxxxxx>
---
drivers/mtd/ubi/wl.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 7f135df..cb2e571 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -2041,6 +2041,9 @@ static void protection_queue_destroy(struct ubi_device *ubi)
void ubi_wl_close(struct ubi_device *ubi)
{
dbg_wl("close the WL sub-system");
+#ifdef CONFIG_MTD_UBI_FASTMAP
+ flush_work(&ubi->fm_work);
+#endif
shutdown_work(ubi);
protection_queue_destroy(ubi);
tree_destroy(&ubi->used);
--
1.8.4.5

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