ACPI: thinkpad-acpi: minor hotkey_radio_sw fixes

Fixes some minor points in the radio switch code and docs.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 35483502a117..c119cf23e1ff 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -1161,15 +1161,15 @@ static void tpacpi_input_send_radiosw(void)
 {
         int wlsw;
 
-        mutex_lock(&tpacpi_inputdev_send_mutex);
-
         if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) {
+                mutex_lock(&tpacpi_inputdev_send_mutex);
+
                 input_report_switch(tpacpi_inputdev,
                                     SW_RADIO, !!wlsw);
                 input_sync(tpacpi_inputdev);
-        }
 
-        mutex_unlock(&tpacpi_inputdev_send_mutex);
+                mutex_unlock(&tpacpi_inputdev_send_mutex);
+        }
 }
 
 static void tpacpi_input_send_tabletsw(unsigned int state)