Lorenzo BianconiandFelix Fietkau 920bc6e1fc wifi: mt76: do not run mt76_unregister_device() on unregistered hw
Trying to probe a mt7921e pci card without firmware results in a
successful probe where ieee80211_register_hw hasn't been called. When
removing the driver, ieee802111_unregister_hw is called unconditionally
leading to a kernel NULL pointer dereference.
Fix the issue running mt76_unregister_device routine just for registered
hw.

Link: https://bugs.debian.org/1029116
Link: https://bugs.kali.org/view.php?id=8140
Reported-by: Stuart Hayhurst <[email protected]>
Fixes: 1c71e03afe4b ("mt76: mt7921: move mt7921_init_hw in a dedicated work")
Tested-by: Helmut Grohne <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
2023-03-01 17:39:20 +01:00
2022-12-10 13:11:04 +01:00
2021-04-14 09:12:11 +02:00
2022-12-10 13:11:04 +01:00
2022-12-10 13:11:04 +01:00
2021-04-17 11:19:58 +02:00
2022-12-10 13:11:04 +01:00
2022-12-10 13:11:04 +01:00
2020-06-16 22:05:14 +02:00
2019-08-22 09:26:30 +02:00
S
Description
mac80211 driver for MediaTek MT76x0e, MT76x2e, MT7603, MT7615, MT7628 and MT7688
BSD-3-Clause
105 MiB
Languages
C 99.7%
Perl 0.2%
Makefile 0.1%