drivers/net/wan/dscc4.c: fix error return code

Move up the initialization of rc so that failure of pci_alloc_consistent
returns -ENOMEM as well.

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

// <smpl>
@@
identifier ret;
expression e1,e2;
@@

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

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/wan/dscc4.c b/drivers/net/wan/dscc4.c
index 9eb6479..ef36caf 100644 (file)
--- a/drivers/net/wan/dscc4.c
+++ b/drivers/net/wan/dscc4.c
@@ -774,14 +774,15 @@ static int __devinit dscc4_init_one(struct pci_dev *pdev,
        }
        /* Global interrupt queue */
        writel((u32)(((IRQ_RING_SIZE >> 5) - 1) << 20), ioaddr + IQLENR1);
+
+       rc = -ENOMEM;
+
        priv->iqcfg = (__le32 *) pci_alloc_consistent(pdev,
                IRQ_RING_SIZE*sizeof(__le32), &priv->iqcfg_dma);
        if (!priv->iqcfg)
                goto err_free_irq_5;
        writel(priv->iqcfg_dma, ioaddr + IQCFG);
 
-       rc = -ENOMEM;
-
        /*
         * SCC 0-3 private rx/tx irq structures
         * IQRX/TXi needs to be set soon. Learned it the hard way...