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[ Upstream commit15d2530769] Syzkaller reports [1, 2] crashes caused by an attempts to ping the device which has failed to load firmware. Since such a device doesn't pass 'ieee80211_register_hw()', an internal workqueue managed by 'ieee80211_queue_work()' is not yet created and an attempt to queue work on it causes null-ptr-deref. [1] https://syzkaller.appspot.com/bug?extid=9a4aec827829942045ff [2] https://syzkaller.appspot.com/bug?extid=0d8afba53e8fb2633217 Fixes:e4a668c590("carl9170: fix spurious restart due to high latency") Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru> Acked-by: Christian Lamparter <chunkeey@gmail.com> Link: https://patch.msgid.link/20250616181205.38883-1-dmantipov@yandex.ru Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>