[PATCH v2] platform/x86/intel/hid: Don't wake on 5-button releases

[David McFarland <corngood@gmail.com>]

If, for example, the power button is configured to suspend, holding it
and releasing it after the machine has suspended, will wake the machine.

Also on some machines, power button release events are sent during
hibernation, even if the button wasn't used to hibernate the machine.
This causes hibernation to be aborted.

Fixes: 0c4cae1bc00d ("PM: hibernate: Avoid missing wakeup events during hibernation")
Signed-off-by: David McFarland <corngood@gmail.com>
Tested-by: Enrik Berkhan <Enrik.Berkhan@inka.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
---
v2: Added tags and fixed whitespace, as requested by Hans.

 drivers/platform/x86/intel/hid.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/intel/hid.c b/drivers/platform/x86/intel/hid.c
index 7457ca2b27a6..9ffbdc988fe5 100644
--- a/drivers/platform/x86/intel/hid.c
+++ b/drivers/platform/x86/intel/hid.c
@@ -504,6 +504,7 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
 	struct platform_device *device = context;
 	struct intel_hid_priv *priv = dev_get_drvdata(&device->dev);
 	unsigned long long ev_index;
+	struct key_entry *ke;
 	int err;
 
 	/*
@@ -545,11 +546,15 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
 		if (event == 0xc0 || !priv->array)
 			return;
 
-		if (!sparse_keymap_entry_from_scancode(priv->array, event)) {
+		ke = sparse_keymap_entry_from_scancode(priv->array, event);
+		if (!ke) {
 			dev_info(&device->dev, "unknown event 0x%x\n", event);
 			return;
 		}
 
+		if (ke->type == KE_IGNORE)
+			return;
+
 wakeup:
 		pm_wakeup_hard_event(&device->dev);
 
-- 
2.42.0