net: fix error return code
authorJulia Lawall <Julia.Lawall@lip6.fr>
Sun, 29 Dec 2013 22:47:22 +0000 (23:47 +0100)
committerDavid S. Miller <davem@davemloft.net>
Thu, 2 Jan 2014 08:30:35 +0000 (03:30 -0500)
Set the return variable to propagate any error code as done elsewhere in
the function.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}

// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/toshiba/ps3_gelic_net.c

index f7f2ef4..d899d00 100644 (file)
@@ -1739,12 +1739,14 @@ static int ps3_gelic_driver_probe(struct ps3_system_bus_device *dev)
                GELIC_CARD_PORT_STATUS_CHANGED;
 
 
-       if (gelic_card_init_chain(card, &card->tx_chain,
-                       card->descr, GELIC_NET_TX_DESCRIPTORS))
+       result = gelic_card_init_chain(card, &card->tx_chain,
+                                      card->descr, GELIC_NET_TX_DESCRIPTORS);
+       if (result)
                goto fail_alloc_tx;
-       if (gelic_card_init_chain(card, &card->rx_chain,
-                                card->descr + GELIC_NET_TX_DESCRIPTORS,
-                                GELIC_NET_RX_DESCRIPTORS))
+       result = gelic_card_init_chain(card, &card->rx_chain,
+                                      card->descr + GELIC_NET_TX_DESCRIPTORS,
+                                      GELIC_NET_RX_DESCRIPTORS);
+       if (result)
                goto fail_alloc_rx;
 
        /* head of chain */
@@ -1754,7 +1756,8 @@ static int ps3_gelic_driver_probe(struct ps3_system_bus_device *dev)
                card->rx_top, card->tx_top, sizeof(struct gelic_descr),
                GELIC_NET_RX_DESCRIPTORS);
        /* allocate rx skbs */
-       if (gelic_card_alloc_rx_skbs(card))
+       result = gelic_card_alloc_rx_skbs(card);
+       if (result)
                goto fail_alloc_skbs;
 
        spin_lock_init(&card->tx_lock);
@@ -1772,7 +1775,8 @@ static int ps3_gelic_driver_probe(struct ps3_system_bus_device *dev)
        }
 
 #ifdef CONFIG_GELIC_WIRELESS
-       if (gelic_wl_driver_probe(card)) {
+       result = gelic_wl_driver_probe(card);
+       if (result) {
                dev_dbg(&dev->core, "%s: WL init failed\n", __func__);
                goto fail_setup_netdev;
        }