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>

2 files changed, 5 insertions, 5 deletions

diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt
index 91f688c30185..606af1628382 100644
--- a/Documentation/laptops/thinkpad-acpi.txt
+++ b/Documentation/laptops/thinkpad-acpi.txt
@@ -306,7 +306,7 @@ sysfs notes:
                 The recommended polling frequency is 10Hz.
 
         hotkey_radio_sw:
-                if the ThinkPad has a hardware radio switch, this
+                If the ThinkPad has a hardware radio switch, this
                 attribute will read 0 if the switch is in the "radios
                 disabled" position, and 1 if the switch is in the
                 "radios enabled" position.
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)