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btrfs: fix race between quota disable and quota assign ioctls
[platform/kernel/linux-rpi.git]
/
lib
/
percpu-refcount.c
diff --git
a/lib/percpu-refcount.c
b/lib/percpu-refcount.c
index
af93021
..
e5c5315
100644
(file)
--- a/
lib/percpu-refcount.c
+++ b/
lib/percpu-refcount.c
@@
-76,6
+76,7
@@
int percpu_ref_init(struct percpu_ref *ref, percpu_ref_func_t *release,
data = kzalloc(sizeof(*ref->data), gfp);
if (!data) {
free_percpu((void __percpu *)ref->percpu_count_ptr);
+ ref->percpu_count_ptr = 0;
return -ENOMEM;
}