Input: synaptics-rmi4 - fix the error return code in rmi_probe_interrupts()

The error return code PTR_ERR(data->irqdomain) is always 0 since
data->irqdomain is equal to NULL in this error handling case.

Fixes: 24d28e4f1271 ("Input: synaptics-rmi4 - convert irq distribution to irq_domain")
Signed-off-by: Wei Yongjun <[e-mail]>
Reviewed-by: Lyude Paul <[e-mail]>
Reviewed-by: Nick Desaulniers <[e-mail]>
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/rmi4/rmi_driver.c

···
 						   data);
 	if (!data->irqdomain) {
 		dev_err(&rmi_dev->dev, "Failed to create IRQ domain\n");
-		return PTR_ERR(data->irqdomain);
+		return -ENOMEM;
 	}
 
 	data->irq_count = irq_count;