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platform/mellanox: mlxreg-hotplug: move to use request_irq by IRQF_NO_AUTOEN flag

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disable_irq() after request_irq() still has a time gap in which
interrupts can come. request_irq() with IRQF_NO_AUTOEN flag will
disable IRQ auto-enable because of requesting.

this patch is made base on "add IRQF_NO_AUTOEN for request_irq" which
is being merged: https://lore.kernel.org/patchwork/patch/1388765/

Signed-off-by: Tian Tao <[email protected]>
Acked-by: Vadim Pasternak <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Hans de Goede <[email protected]>
This commit is contained in:
Tian Tao authored and Hans de Goede committed 2021-04-08 16:20:09 +02:00
1 parent bbca17c0ad
commit bee3ecfed0
1 file changed
+2 -2
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drivers/platform/mellanox/mlxreg-hotplug.c
+2 -2
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@@ -683,13 +683,13 @@ static int mlxreg_hotplug_probe(struct platform_device *pdev)
err = devm_request_irq(&pdev->dev, priv->irq,
mlxreg_hotplug_irq_handler, IRQF_TRIGGER_FALLING
| IRQF_SHARED, "mlxreg-hotplug", priv);
| IRQF_SHARED | IRQF_NO_AUTOEN,
"mlxreg-hotplug", priv);
if (err) {
dev_err(&pdev->dev, "Failed to request irq: %d\n", err);
return err;
}
disable_irq(priv->irq);
spin_lock_init(&priv->lock);
INIT_DELAYED_WORK(&priv->dwork_irq, mlxreg_hotplug_work_handler);
dev_set_drvdata(&pdev->dev, priv);