drbd: _drbd_send_zc_ee(): Return 0 upon success and an error code otherwise

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index fa838b2..59fb39f 100644 (file)
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1500,16 +1500,19 @@ static int _drbd_send_zc_ee(struct drbd_conf *mdev,
 {
        struct page *page = peer_req->pages;
        unsigned len = peer_req->i.size;
+       int err;
 
        /* hint all but last page with MSG_MORE */
        page_chain_for_each(page) {
                unsigned l = min_t(unsigned, len, PAGE_SIZE);
-               if (_drbd_send_page(mdev, page, 0, l,
-                                   page_chain_next(page) ? MSG_MORE : 0))
-                       return 0;
+
+               err = _drbd_send_page(mdev, page, 0, l,
+                                     page_chain_next(page) ? MSG_MORE : 0);
+               if (err)
+                       return err;
                len -= l;
        }
-       return 1;
+       return 0;
 }
 
 static u32 bio_flags_to_wire(struct drbd_conf *mdev, unsigned long bi_rw)
@@ -1634,7 +1637,7 @@ int drbd_send_block(struct drbd_conf *mdev, enum drbd_packet cmd,
                ok = dgs == drbd_send(mdev->tconn, mdev->tconn->data.socket, dgb, dgs, 0);
        }
        if (ok)
-               ok = _drbd_send_zc_ee(mdev, peer_req);
+               ok = !_drbd_send_zc_ee(mdev, peer_req);
 
        drbd_put_data_sock(mdev->tconn);