spatch: api/ptr_ret.cocci


 Use PTR_RET rather than if(IS_ERR(...)) + PTR_ERR

--- /c/kernel-tests/src/linux/drivers/infiniband/core/cma.c
+++ /tmp/cocci-output-51533-104088-cma.c
@@ -3064,10 +3064,7 @@ static int cma_join_ib_multicast(struct
 						id_priv->id.port_num, &rec,
 						comp_mask, GFP_KERNEL,
 						cma_ib_mc_handler, mc);
-	if (IS_ERR(mc->multicast.ib))
-		return PTR_ERR(mc->multicast.ib);
-
-	return 0;
+	return PTR_RET(mc->multicast.ib);
 }
 
 static void iboe_mcast_work_handler(struct work_struct *work)