drivers/net/davinci_emac.c: add missing clk_put

Go to existing error handling code at the end of the function that calls
clk_put.

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

// <smpl>
@r exists@
expression e1,e2;
statement S;
@@

e1 = clk_get@p1(...);
... when != e1 = e2
    when != clk_put(e1)
    when any
if (...) { ... when != clk_put(e1)
               when != if (...) { ... clk_put(e1) ... }
* return@p3 ...;
 } else S
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 29a4f06..dcc4a17 100644 (file)
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -1781,8 +1781,8 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
        ndev = alloc_etherdev(sizeof(struct emac_priv));
        if (!ndev) {
                dev_err(&pdev->dev, "error allocating net_device\n");
-               clk_put(emac_clk);
-               return -ENOMEM;
+               rc = -ENOMEM;
+               goto free_clk;
        }
 
        platform_set_drvdata(pdev, ndev);
@@ -1796,7 +1796,8 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
        pdata = pdev->dev.platform_data;
        if (!pdata) {
                dev_err(&pdev->dev, "no platform data\n");
-               return -ENODEV;
+               rc = -ENODEV;
+               goto probe_quit;
        }
 
        /* MAC addr and PHY mask , RMII enable info from platform_data */
@@ -1929,8 +1930,9 @@ no_dma:
        iounmap(priv->remap_addr);
 
 probe_quit:
-       clk_put(emac_clk);
        free_netdev(ndev);
+free_clk:
+       clk_put(emac_clk);
        return rc;
 }