bcache: update document info
There is no return in continue_at(), update the documentation.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Acked-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/drivers/md/bcache/closure.c b/drivers/md/bcache/closure.c
index 9eaf1d6..864e673 100644
--- a/drivers/md/bcache/closure.c
+++ b/drivers/md/bcache/closure.c
@@ -112,7 +112,7 @@
EXPORT_SYMBOL(closure_wait);
/**
- * closure_sync - sleep until a closure a closure has nothing left to wait on
+ * closure_sync - sleep until a closure has nothing left to wait on
*
* Sleeps until the refcount hits 1 - the thread that's running the closure owns
* the last refcount.
diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h
index 782cc2c..9b2fe2d 100644
--- a/drivers/md/bcache/closure.h
+++ b/drivers/md/bcache/closure.h
@@ -31,7 +31,8 @@
* passing it, as you might expect, the function to run when nothing is pending
* and the workqueue to run that function out of.
*
- * continue_at() also, critically, is a macro that returns the calling function.
+ * continue_at() also, critically, requires a 'return' immediately following the
+ * location where this macro is referenced, to return to the calling function.
* There's good reason for this.
*
* To use safely closures asynchronously, they must always have a refcount while