RDMA/rxe: Fix an error handling path in rxe_bind_mw()

All errors go to the error handling path, except this one. Be consistent
and also branch to it.

Fixes: 02ed253 ("RDMA/rxe: Introduce rxe access supported flags")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/43698d8a3ed4e720899eadac887427f73d7ec2eb.1689623735.git.christophe.jaillet@wanadoo.fr
Reviewed-by: Bob Pearson <rpearsonhpe@gmail.com>
Acked-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

Author: tititiou36

drivers/infiniband/sw/rxe/rxe_mw.c

@@ -199,7 +199,8 @@ int rxe_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe)
 
 	if (access & ~RXE_ACCESS_SUPPORTED_MW) {
 		rxe_err_mw(mw, "access %#x not supported", access);
-		return -EOPNOTSUPP;
+		ret = -EOPNOTSUPP;
+		goto err_drop_mr;
 	}
 
 	spin_lock_bh(&mw->lock);