1 files changed, 32 insertions, 5 deletions

diff --git a/drivers/net/wireless/b43/rfkill.c b/drivers/net/wireless/b43/rfkill.c
index 9b1f905ffbf4..98cf70c5fd47 100644
--- a/drivers/net/wireless/b43/rfkill.c
+++ b/drivers/net/wireless/b43/rfkill.c
@@ -25,6 +25,8 @@
 #include "rfkill.h"
 #include "b43.h"
 
+#include <linux/kmod.h>
+
 
 /* Returns TRUE, if the radio is enabled in hardware. */
 static bool b43_is_hw_radio_enabled(struct b43_wldev *dev)
@@ -50,7 +52,10 @@ static void b43_rfkill_poll(struct input_polled_dev *poll_dev)
         bool report_change = 0;
 
         mutex_lock(&wl->mutex);
-        B43_WARN_ON(b43_status(dev) < B43_STAT_INITIALIZED);
+        if (unlikely(b43_status(dev) < B43_STAT_INITIALIZED)) {
+                mutex_unlock(&wl->mutex);
+                return;
+        }
         enabled = b43_is_hw_radio_enabled(dev);
         if (unlikely(enabled != dev->radio_hw_enable)) {
                 dev->radio_hw_enable = enabled;
@@ -60,8 +65,12 @@ static void b43_rfkill_poll(struct input_polled_dev *poll_dev)
         }
         mutex_unlock(&wl->mutex);
 
-        if (unlikely(report_change))
-                input_report_key(poll_dev->input, KEY_WLAN, enabled);
+        /* send the radio switch event to the system - note both a key press
+         * and a release are required */
+        if (unlikely(report_change)) {
+                input_report_key(poll_dev->input, KEY_WLAN, 1);
+                input_report_key(poll_dev->input, KEY_WLAN, 0);
+        }
 }
 
 /* Called when the RFKILL toggled in software. */
@@ -69,13 +78,15 @@ static int b43_rfkill_soft_toggle(void *data, enum rfkill_state state)
 {
         struct b43_wldev *dev = data;
         struct b43_wl *wl = dev->wl;
-        int err = 0;
+        int err = -EBUSY;
 
         if (!wl->rfkill.registered)
                 return 0;
 
         mutex_lock(&wl->mutex);
-        B43_WARN_ON(b43_status(dev) < B43_STAT_INITIALIZED);
+        if (b43_status(dev) < B43_STAT_INITIALIZED)
+                goto out_unlock;
+        err = 0;
         switch (state) {
         case RFKILL_STATE_ON:
                 if (!dev->radio_hw_enable) {
@@ -133,9 +144,25 @@ void b43_rfkill_init(struct b43_wldev *dev)
         rfk->poll_dev->poll = b43_rfkill_poll;
         rfk->poll_dev->poll_interval = 1000; /* msecs */
 
+        rfk->poll_dev->input->name = rfk->name;
+        rfk->poll_dev->input->id.bustype = BUS_HOST;
+        rfk->poll_dev->input->id.vendor = dev->dev->bus->boardinfo.vendor;
+        rfk->poll_dev->input->evbit[0] = BIT(EV_KEY);
+        set_bit(KEY_WLAN, rfk->poll_dev->input->keybit);
+
         err = rfkill_register(rfk->rfkill);
         if (err)
                 goto err_free_polldev;
+
+#ifdef CONFIG_RFKILL_INPUT_MODULE
+        /* B43 RF-kill isn't useful without the rfkill-input subsystem.
+         * Try to load the module. */
+        err = request_module("rfkill-input");
+        if (err)
+                b43warn(wl, "Failed to load the rfkill-input module. "
+                        "The built-in radio LED will not work.\n");
+#endif /* CONFIG_RFKILL_INPUT */
+
         err = input_register_polled_device(rfk->poll_dev);
         if (err)
                 goto err_unreg_rfk;