wifi: rtw88: Lock rtwdev->mutex before setting the LED

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[ Upstream commit 26a8bf978a ]

Some users report that the LED blinking breaks AP mode somehow. Most
likely the LED code and the dynamic mechanism are trying to access the
hardware registers at the same time. Fix it by locking rtwdev->mutex
before setting the LED and unlocking it after.

Fixes: 4b6652bc6d ("wifi: rtw88: Add support for LED blinking")
Closes: https://github.com/lwfinger/rtw88/issues/305
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/ed69fa07-8678-4a40-af44-65e7b1862197@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Bitterblue Smith 2025-08-01 23:08:24 +03:00 • committed by Greg Kroah-Hartman

parent f24dd254bd

commit c058133771

1 changed files with 13 additions and 3 deletions

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drivers/net/wireless/realtek/rtw88/led.c

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