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gianfar: fix handle errors returned by platform_get_irq*()

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platform_get_irq*() returns on -ENXIO when the resource cannot be
found, but this remains unnoticed if stored in an unsigned.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
roel kluin 2008-10-21 01:35:34 -04:00 committed by Jeff Garzik
parent e1564ec938
commit d51894f497
1 changed files with 17 additions and 7 deletions
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24
drivers/net/gianfar.c
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@ -161,7 +161,7 @@ static int gfar_probe(struct platform_device *pdev)
struct gfar_private *priv = NULL;
struct gianfar_platform_data *einfo;
struct resource *r;
int err = 0;
int err = 0, irq;
DECLARE_MAC_BUF(mac);
einfo = (struct gianfar_platform_data *) pdev->dev.platform_data;
@ -187,15 +187,25 @@ static int gfar_probe(struct platform_device *pdev)
/* fill out IRQ fields */
if (einfo->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
priv->interruptTransmit = platform_get_irq_byname(pdev, "tx");
priv->interruptReceive = platform_get_irq_byname(pdev, "rx");
priv->interruptError = platform_get_irq_byname(pdev, "error");
if (priv->interruptTransmit < 0 || priv->interruptReceive < 0 || priv->interruptError < 0)
irq = platform_get_irq_byname(pdev, "tx");
if (irq < 0)
goto regs_fail;
priv->interruptTransmit = irq;
irq = platform_get_irq_byname(pdev, "rx");
if (irq < 0)
goto regs_fail;
priv->interruptReceive = irq;
irq = platform_get_irq_byname(pdev, "error");
if (irq < 0)
goto regs_fail;
priv->interruptError = irq;
} else {
priv->interruptTransmit = platform_get_irq(pdev, 0);
if (priv->interruptTransmit < 0)
irq = platform_get_irq(pdev, 0);
if (irq < 0)
goto regs_fail;
priv->interruptTransmit = irq;
}
/* get a pointer to the register memory */