thermal: rcar_gen3_thermal: disable interrupt in .remove
authorJiada Wang <jiada_wang@mentor.com>
Wed, 24 Apr 2019 05:11:45 +0000 (14:11 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 15 Jun 2019 09:54:02 +0000 (11:54 +0200)
[ Upstream commit 63f55fcea50c25ae5ad45af92d08dae3b84534c2 ]

Currently IRQ remains enabled after .remove, later if device is probed,
IRQ is requested before .thermal_init, this may cause IRQ function be
called before device is initialized.

this patch disables interrupt in .remove, to ensure irq function
only be called after device is fully initialized.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/thermal/rcar_gen3_thermal.c

index 7aed533..704c8ad 100644 (file)
@@ -328,6 +328,9 @@ MODULE_DEVICE_TABLE(of, rcar_gen3_thermal_dt_ids);
 static int rcar_gen3_thermal_remove(struct platform_device *pdev)
 {
        struct device *dev = &pdev->dev;
+       struct rcar_gen3_thermal_priv *priv = dev_get_drvdata(dev);
+
+       rcar_thermal_irq_set(priv, false);
 
        pm_runtime_put(dev);
        pm_runtime_disable(dev);