From: Grazvydas Ignotas <notasas@gmail.com>
Date: Sat, 4 Aug 2012 23:51:18 +0000 (+0300)
Subject: wl1251: only call ieee80211_beacon_loss in managed mode
X-Git-Tag: sz_release_151~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c8317659cf5482682be922686cab9673fa5b04a;p=pandora-kernel.git

wl1251: only call ieee80211_beacon_loss in managed mode

It seems the firmware can send SYNCHRONIZATION_TIMEOUT_EVENT at any
time, while ieee80211_beacon_loss() can only be called in managed
mode, so we need to do appropriate checks. Otherwise BUG() can be
seen triggered while attempting to set up adhoc mode:

kernel BUG at kernel/workqueue.c:1040!
...
[<c0049e90>] (__queue_work+0x17c/0x238) from [<c0049f98>] (queue_work_on+0x2c/0x34)
[<c0049f98>] (queue_work_on+0x2c/0x34) from [<bf2098b4>] (wl1251_event_handle+0xb8/0x158 [wl1251])
[<bf2098b4>] (wl1251_event_handle+0xb8/0x158 [wl1251]) from [<bf2095a4>] (wl1251_irq_work+0x128/0x188 [wl1251])
[<bf2095a4>] (wl1251_irq_work+0x128/0x188 [wl1251]) from [<c004a2d0>] (process_one_work+0x1e0/0x30c)
...

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
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