drivers: net: cpsw: fix error return code

Propagate the return value of platform_get_irq on failure.

A simplified version of the semantic match that finds the two cases where
no error code is returned at all is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret = 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>

1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 3b489caea096..fc958067d10a 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -2427,7 +2427,7 @@ static int cpsw_probe(struct platform_device *pdev)
         ndev->irq = platform_get_irq(pdev, 1);
         if (ndev->irq < 0) {
                 dev_err(priv->dev, "error getting irq resource\n");
-                ret = -ENOENT;
+                ret = ndev->irq;
                 goto clean_ale_ret;
         }
 
@@ -2448,8 +2448,10 @@ static int cpsw_probe(struct platform_device *pdev)
 
         /* RX IRQ */
         irq = platform_get_irq(pdev, 1);
-        if (irq < 0)
+        if (irq < 0) {
+                ret = irq;
                 goto clean_ale_ret;
+        }
 
         priv->irqs_table[0] = irq;
         ret = devm_request_irq(&pdev->dev, irq, cpsw_rx_interrupt,
@@ -2461,8 +2463,10 @@ static int cpsw_probe(struct platform_device *pdev)
 
         /* TX IRQ */
         irq = platform_get_irq(pdev, 2);
-        if (irq < 0)
+        if (irq < 0) {
+                ret = irq;
                 goto clean_ale_ret;
+        }
 
         priv->irqs_table[1] = irq;
         ret = devm_request_irq(&pdev->dev, irq, cpsw_tx_interrupt,