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path: root/drivers/md/bcache/alloc.c
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Diffstat (limited to 'drivers/md/bcache/alloc.c')
-rw-r--r--drivers/md/bcache/alloc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c
index cacbe2dbd5c3..e1a4205caa2e 100644
--- a/drivers/md/bcache/alloc.c
+++ b/drivers/md/bcache/alloc.c
@@ -406,7 +406,8 @@ long bch_bucket_alloc(struct cache *ca, unsigned reserve, bool wait)
finish_wait(&ca->set->bucket_wait, &w);
out:
- wake_up_process(ca->alloc_thread);
+ if (ca->alloc_thread)
+ wake_up_process(ca->alloc_thread);
trace_bcache_alloc(ca, reserve);