extcon: arizona: Get pdata from arizona structure not device

In the case of a device tree system there will be no pdata attached to
the device, causing us to deference a NULL pointer. Better to take the
pdata from the Arizona structure as this will always exist and we know
will have been populated since it is populated by the MFD device which
binds in the extcon driver.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 3c55ec856e39c714e7b474f081c01180b9aa9e2d..a287cece0593c327c53e8961b70a0dde8b1af2ce 100644 (file)
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -1082,7 +1082,7 @@ static void arizona_micd_set_level(struct arizona *arizona, int index,
 static int arizona_extcon_probe(struct platform_device *pdev)
 {
        struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
-       struct arizona_pdata *pdata;
+       struct arizona_pdata *pdata = &arizona->pdata;
        struct arizona_extcon_info *info;
        unsigned int val;
        int jack_irq_fall, jack_irq_rise;
@@ -1091,8 +1091,6 @@ static int arizona_extcon_probe(struct platform_device *pdev)
        if (!arizona->dapm || !arizona->dapm->card)
                return -EPROBE_DEFER;
 
-       pdata = dev_get_platdata(arizona->dev);
-
        info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
        if (!info) {
                dev_err(&pdev->dev, "Failed to allocate memory\n");