drivers:net: delete premature free_irq

Free_irq is not needed if there has been no request_irq.  Free_irq is
removed from both the probe and remove functions.  The correct request_irq
and free_irq are found in the open and close functions.

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

// <smpl>
@@
expression e;
@@

*e = platform_get_irq(...);
... when != request_irq(e,...)
*free_irq(e,...)
// </smpl>

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

diff --git a/drivers/net/ethernet/nuvoton/w90p910_ether.c b/drivers/net/ethernet/nuvoton/w90p910_ether.c
index dcfe58f..79645f7 100644 (file)
--- a/drivers/net/ethernet/nuvoton/w90p910_ether.c
+++ b/drivers/net/ethernet/nuvoton/w90p910_ether.c
@@ -1014,7 +1014,7 @@ static int w90p910_ether_probe(struct platform_device *pdev)
        if (ether->rxirq < 0) {
                dev_err(&pdev->dev, "failed to get ether rx irq\n");
                error = -ENXIO;
-               goto failed_free_txirq;
+               goto failed_free_io;
        }
 
        platform_set_drvdata(pdev, dev);
@@ -1023,7 +1023,7 @@ static int w90p910_ether_probe(struct platform_device *pdev)
        if (IS_ERR(ether->clk)) {
                dev_err(&pdev->dev, "failed to get ether clock\n");
                error = PTR_ERR(ether->clk);
-               goto failed_free_rxirq;
+               goto failed_free_io;
        }
 
        ether->rmiiclk = clk_get(&pdev->dev, "RMII");
@@ -1049,10 +1049,6 @@ failed_put_rmiiclk:
        clk_put(ether->rmiiclk);
 failed_put_clk:
        clk_put(ether->clk);
-failed_free_rxirq:
-       free_irq(ether->rxirq, pdev);
-failed_free_txirq:
-       free_irq(ether->txirq, pdev);
 failed_free_io:
        iounmap(ether->reg);
 failed_free_mem:
@@ -1075,9 +1071,6 @@ static int w90p910_ether_remove(struct platform_device *pdev)
        iounmap(ether->reg);
        release_mem_region(ether->res->start, resource_size(ether->res));
 
-       free_irq(ether->txirq, dev);
-       free_irq(ether->rxirq, dev);
-
        del_timer_sync(&ether->check_timer);
 
        free_netdev(dev);