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Commit d51894f4 authored by roel kluin's avatar roel kluin Committed by Jeff Garzik
Browse files

gianfar: fix handle errors returned by platform_get_irq*() 



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

Signed-off-by: default avatarRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent e1564ec9

drivers/net/gianfar.c

+17 −7
Original line number Diff line number Diff line
@@ -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 */