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can: c_can_platform: fix irq check in probe 

This patch fixes the check in the probe function whether a IRQ was supplied
to the driver. The original driver check the irq "struct resource *" against
<= 0. Use "platform_get_irq" instead.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Bhupesh Sharma <bhupesh.sharma@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Marc Kleine-Budde 2011-03-24 02:34:33 +00:00 committed by David S. Miller
parent ee6f0988a6
commit b0052b088c
1 changed files with 5 additions and 4 deletions
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9
drivers/net/can/c_can/c_can_platform.c
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@ -73,7 +73,8 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev)
void __iomem *addr;
struct net_device *dev;
struct c_can_priv *priv;
struct resource *mem, *irq;
struct resource *mem;
int irq;
#ifdef CONFIG_HAVE_CLK
struct clk *clk;
@ -88,8 +89,8 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev)
/* get the platform data */
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!mem || (irq <= 0)) {
irq = platform_get_irq(pdev, 0);
if (!mem || irq <= 0) {
ret = -ENODEV;
goto exit_free_clk;
}
@ -117,7 +118,7 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev)
priv = netdev_priv(dev);
dev->irq = irq->start;
dev->irq = irq;
priv->regs = addr;
#ifdef CONFIG_HAVE_CLK
priv->can.clock.freq = clk_get_rate(clk);