Input: as5011 - fix error return code in as5011_probe()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <[e-mail]>
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/joystick/as5011.c

···
 	if (irq < 0) {
 		dev_err(&client->dev,
 			"Failed to get irq number for button gpio\n");
+		error = irq;
 		goto err_free_button_gpio;
 	}