]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - net/rfkill/rfkill.c
[XFRM] IPv6: Fix dst/routing check at transformation.
[linux-2.6-omap-h63xx.git] / net / rfkill / rfkill.c
index 73d60a307129110de0aec93b57c6fdacd76d1b88..d06d338812e975081ff20f771ea2c9069abede4c 100644 (file)
@@ -60,11 +60,7 @@ static void rfkill_led_trigger(struct rfkill *rfkill,
 static int rfkill_toggle_radio(struct rfkill *rfkill,
                                enum rfkill_state state)
 {
-       int retval;
-
-       retval = mutex_lock_interruptible(&rfkill->mutex);
-       if (retval)
-               return retval;
+       int retval = 0;
 
        if (state != rfkill->state) {
                retval = rfkill->toggle_radio(rfkill->data, state);
@@ -74,7 +70,6 @@ static int rfkill_toggle_radio(struct rfkill *rfkill,
                }
        }
 
-       mutex_unlock(&rfkill->mutex);
        return retval;
 }
 
@@ -158,12 +153,13 @@ static ssize_t rfkill_state_store(struct device *dev,
        if (!capable(CAP_NET_ADMIN))
                return -EPERM;
 
+       if (mutex_lock_interruptible(&rfkill->mutex))
+               return -ERESTARTSYS;
        error = rfkill_toggle_radio(rfkill,
                        state ? RFKILL_STATE_ON : RFKILL_STATE_OFF);
-       if (error)
-               return error;
+       mutex_unlock(&rfkill->mutex);
 
-       return count;
+       return error ? error : count;
 }
 
 static ssize_t rfkill_claim_show(struct device *dev,
@@ -396,11 +392,14 @@ int rfkill_register(struct rfkill *rfkill)
        rfkill_led_trigger_register(rfkill);
 
        error = rfkill_add_switch(rfkill);
-       if (error)
+       if (error) {
+               rfkill_led_trigger_unregister(rfkill);
                return error;
+       }
 
        error = device_add(dev);
        if (error) {
+               rfkill_led_trigger_unregister(rfkill);
                rfkill_remove_switch(rfkill);
                return error;
        }