[PATCH] mips: pci-lantiq: Fix check for valid gpio

[Roland Stigge <stigge@antcom.de>]

This patch fixes two checks for valid gpio number, formerly (wrongly)
considering zero as invalid, now using gpio_is_valid().

Signed-off-by: Roland Stigge <stigge@antcom.de>
---
 arch/mips/pci/pci-lantiq.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- linux-2.6.orig/arch/mips/pci/pci-lantiq.c
+++ linux-2.6/arch/mips/pci/pci-lantiq.c
@@ -129,7 +129,7 @@ static int __devinit ltq_pci_startup(str
 
        /* setup reset gpio used by pci */
        reset_gpio = of_get_named_gpio(node, "gpio-reset", 0);
-       if (reset_gpio > 0)
+       if (gpio_is_valid(reset_gpio))
                devm_gpio_request(&pdev->dev, reset_gpio, "pci-reset");
 
        /* enable auto-switching between PCI and EBU */
@@ -192,7 +192,7 @@ static int __devinit ltq_pci_startup(str
        ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_IEN) | 0x10, LTQ_EBU_PCC_IEN);
 
        /* toggle reset pin */
-       if (reset_gpio > 0) {
+       if (gpio_is_valid(reset_gpio)) {
                __gpio_set_value(reset_gpio, 0);
                wmb();
                mdelay(1);