[media] m5mols: Add missing free_irq() on error path

Make sure the interrupt is freed when driver probing fails.
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: HeungJun Kim <riverful.kim@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/i2c/m5mols/m5mols_core.c

@@ -931,7 +931,7 @@ static int __devinit m5mols_probe(struct i2c_client *client,
 
 	ret = m5mols_sensor_power(info, true);
 	if (ret)
-		goto out_me;
+		goto out_irq;
 
 	ret = m5mols_fw_start(sd);
 	if (!ret)
@@ -940,6 +940,8 @@ static int __devinit m5mols_probe(struct i2c_client *client,
 	ret = m5mols_sensor_power(info, false);
 	if (!ret)
 		return 0;
+out_irq:
+	free_irq(client->irq, sd);
 out_me:
 	media_entity_cleanup(&sd->entity);
 out_reg: