fuse: don't let fuse_req->end() put the base reference

fuse_req->end() was supposed to be put the base reference but there's
no reason why it should.  It only makes things more complex.  Move it
out of ->end() and make it the responsibility of request_end().

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 85a23bb..225388f 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -293,8 +293,7 @@
 	wake_up(&req->waitq);
 	if (end)
 		end(fc, req);
-	else
-		fuse_put_request(fc, req);
+	fuse_put_request(fc, req);
 }
 
 static void wait_answer_interruptible(struct fuse_conn *fc,
@@ -1006,11 +1005,11 @@
 		wake_up(&req->waitq);
 		if (end) {
 			req->end = NULL;
-			/* The end function will consume this reference */
 			__fuse_get_request(req);
 			spin_unlock(&fc->lock);
 			wait_event(req->waitq, !req->locked);
 			end(fc, req);
+			fuse_put_request(fc, req);
 			spin_lock(&fc->lock);
 		}
 	}