md/bcache: convert comma to semicolon

Replace a comma between expression statements by a semicolon.
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: Coly Li <colyli@sue.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

drivers/md/bcache/sysfs.c

@@ -404,7 +404,7 @@ STORE(__cached_dev)
 		if (!env)
 			return -ENOMEM;
 		add_uevent_var(env, "DRIVER=bcache");
-		add_uevent_var(env, "CACHED_UUID=%pU", dc->sb.uuid),
+		add_uevent_var(env, "CACHED_UUID=%pU", dc->sb.uuid);
 		add_uevent_var(env, "CACHED_LABEL=%s", buf);
 		kobject_uevent_env(&disk_to_dev(dc->disk.disk)->kobj,
 				   KOBJ_CHANGE,