diff options
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/thinkpad_acpi.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c index 8aa0f9694b87..0ced9d65c6be 100644 --- a/drivers/misc/thinkpad_acpi.c +++ b/drivers/misc/thinkpad_acpi.c @@ -519,6 +519,7 @@ static char *next_cmd(char **cmds) static struct platform_device *tpacpi_pdev; static struct class_device *tpacpi_hwmon; static struct input_dev *tpacpi_inputdev; +static struct mutex tpacpi_inputdev_send_mutex; static int tpacpi_resume_handler(struct platform_device *pdev) @@ -1131,6 +1132,8 @@ static void tpacpi_input_send_key(unsigned int scancode, unsigned int keycode) { if (keycode != KEY_RESERVED) { + mutex_lock(&tpacpi_inputdev_send_mutex); + input_report_key(tpacpi_inputdev, keycode, 1); if (keycode == KEY_UNKNOWN) input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, @@ -1142,6 +1145,8 @@ static void tpacpi_input_send_key(unsigned int scancode, input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); input_sync(tpacpi_inputdev); + + mutex_unlock(&tpacpi_inputdev_send_mutex); } } @@ -1149,11 +1154,15 @@ static void tpacpi_input_send_radiosw(void) { int wlsw; + mutex_lock(&tpacpi_inputdev_send_mutex); + if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { input_report_switch(tpacpi_inputdev, SW_RADIO, !!wlsw); input_sync(tpacpi_inputdev); } + + mutex_unlock(&tpacpi_inputdev_send_mutex); } static void hotkey_notify(struct ibm_struct *ibm, u32 event) @@ -4737,6 +4746,7 @@ static int __init thinkpad_acpi_module_init(void) thinkpad_acpi_module_exit(); return ret; } + mutex_init(&tpacpi_inputdev_send_mutex); tpacpi_inputdev = input_allocate_device(); if (!tpacpi_inputdev) { printk(IBM_ERR "unable to allocate input device\n"); |