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thinkpad-acpi: fix poll thread auto-start

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The driver was not starting the NVRAM polling thread if the input
device was bound immediately after registration.

This fixes:
http://bugzilla.kernel.org/show_bug.cgi?id=15118

Reported-by: Florian Zumbiehl <florz@florz.de>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: stable@kernel.org
This commit is contained in:
Henrique de Moraes Holschuh 2010-02-25 21:28:58 -03:00
parent 7d1894d8d1
commit b589ea4c44
1 changed files with 6 additions and 9 deletions
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15
drivers/platform/x86/thinkpad_acpi.c
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@ -2607,16 +2607,11 @@ static int hotkey_inputdev_open(struct input_dev *dev)
{
switch (tpacpi_lifecycle) {
case TPACPI_LIFE_INIT:
/*
* hotkey_init will call hotkey_poll_setup_safe
* at the appropriate moment
*/
return 0;
case TPACPI_LIFE_EXITING:
return -EBUSY;
case TPACPI_LIFE_RUNNING:
hotkey_poll_setup_safe(false);
return 0;
case TPACPI_LIFE_EXITING:
return -EBUSY;
}
/* Should only happen if tpacpi_lifecycle is corrupt */
@ -2627,7 +2622,7 @@ static int hotkey_inputdev_open(struct input_dev *dev)
static void hotkey_inputdev_close(struct input_dev *dev)
{
/* disable hotkey polling when possible */
if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING &&
if (tpacpi_lifecycle != TPACPI_LIFE_EXITING &&
!(hotkey_source_mask & hotkey_driver_mask))
hotkey_poll_setup_safe(false);
}
@ -9038,6 +9033,9 @@ static int __init thinkpad_acpi_module_init(void)
return ret;
}
}
tpacpi_lifecycle = TPACPI_LIFE_RUNNING;
ret = input_register_device(tpacpi_inputdev);
if (ret < 0) {
printk(TPACPI_ERR "unable to register input device\n");
@ -9047,7 +9045,6 @@ static int __init thinkpad_acpi_module_init(void)
tp_features.input_device_registered = 1;
}
tpacpi_lifecycle = TPACPI_LIFE_RUNNING;
return 0;
}