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-rw-r--r--block/qed.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/block/qed.c b/block/qed.c
index 382c9e5335..ac24449ffb 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -353,6 +353,7 @@ static void bdrv_qed_detach_aio_context(BlockDriverState *bs)
 
     qed_cancel_need_check_timer(s);
     timer_free(s->need_check_timer);
+    s->need_check_timer = NULL;
 }
 
 static void bdrv_qed_attach_aio_context(BlockDriverState *bs,