i2c: fix wakeup irq parsing

This patch fixes obvious copy-past error in wake up irq parsing
code which leads to the fact that dev_pm_set_wake_irq() will
be called with wrong IRQ number when "wakeup" IRQ is not
defined in DT.

Fixes: 3fffd12 ("i2c: allow specifying separate wakeup interrupt in device tree")
Signed-off-by: Grygorii Strashko <[email protected]>
Acked-by: Dmitry Torokhov <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
Cc: <[email protected]> # v4.3

drivers/i2c/i2c-core.c

@@ -715,7 +715,7 @@ static int i2c_device_probe(struct device *dev)
 		if (wakeirq > 0 && wakeirq != client->irq)
 			status = dev_pm_set_dedicated_wake_irq(dev, wakeirq);
 		else if (client->irq > 0)
-			status = dev_pm_set_wake_irq(dev, wakeirq);
+			status = dev_pm_set_wake_irq(dev, client->irq);
 		else
 			status = 0;