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Subject[PATCH 1/4] UBI: Ensure that all fastmap work is done upon WL shutdown
Date
...otherwise the deferred work might run after datastructures
got freed and corrupt memory.

Signed-off-by: Richard Weinberger <richard@nod.at>
---
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 20f491713..dc01b1f 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -2029,6 +2029,9 @@ 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
cancel_pending(ubi);
protection_queue_destroy(ubi);
tree_destroy(&ubi->used);
--
2.1.0


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