On 10/22/2012 11:36 PM, Markus Kanet wrote:
NULL pointer dereference when unloading the b43 driver (not b43legacy) during
shutdown if firmware was never loaded. See attached syslog.
When I did the b43legacy patch, it seemed reasonable that b43 also needed a
similar fix, but I could not get b43 to fail on two different systems. Does the
patch below work for you?
Larry
Index: wireless-testing-new/drivers/net/wireless/b43/main.c
===================================================================
--- wireless-testing-new.orig/drivers/net/wireless/b43/main.c
+++ wireless-testing-new/drivers/net/wireless/b43/main.c
@@ -5404,6 +5404,8 @@ static void b43_bcma_remove(struct bcma_
cancel_work_sync(&wldev->restart_work);
B43_WARN_ON(!wl);
+ if (!wldev->fw.ucode.data)
+ return; /* NULL if firmware never loaded */
if (wl->current_dev == wldev && wl->hw_registred) {
b43_leds_stop(wldev);
ieee80211_unregister_hw(wl->hw);
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