1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/md/bcache/closure.c b/drivers/md/bcache/closure.c
index bd05a9a8c7cf..9aba2017f0d1 100644
--- a/drivers/md/bcache/closure.c
+++ b/drivers/md/bcache/closure.c
@@ -66,16 +66,18 @@ static inline void closure_put_after_sub(struct closure *cl, int flags)
                 } else {
                         struct closure *parent = cl->parent;
                         struct closure_waitlist *wait = closure_waitlist(cl);
+                        closure_fn *destructor = cl->fn;
 
                         closure_debug_destroy(cl);
 
+                        smp_mb();
                         atomic_set(&cl->remaining, -1);
 
                         if (wait)
                                 closure_wake_up(wait);
 
-                        if (cl->fn)
-                                cl->fn(cl);
+                        if (destructor)
+                                destructor(cl);
 
                         if (parent)
                                 closure_put(parent);