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gpio: Fix null pointer dereference while accessing rdc321x platform_data
rdc321x-gpio currently fetches its driver specific data by using the platform_device->platform_data pointer, this is wrong because the mfd device which registers our platform_device has been added using mfd_add_device() which sets the platform_device->driver_data pointer instead. Signed-off-by: Florian Fainelli <florian@openwrt.org> CC: stable@kernel.org Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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@ -135,7 +135,7 @@ static int __devinit rdc321x_gpio_probe(struct platform_device *pdev)
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struct rdc321x_gpio *rdc321x_gpio_dev;
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struct rdc321x_gpio *rdc321x_gpio_dev;
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struct rdc321x_gpio_pdata *pdata;
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struct rdc321x_gpio_pdata *pdata;
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pdata = pdev->dev.platform_data;
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pdata = platform_get_drvdata(pdev);
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if (!pdata) {
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if (!pdata) {
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dev_err(&pdev->dev, "no platform data supplied\n");
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dev_err(&pdev->dev, "no platform data supplied\n");
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return -ENODEV;
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return -ENODEV;
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