ath9k: fix false positives in the baseband hang check

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ath9k_hw_check_alive() occasionally returns false, as the hardware
is still processing data in a specific state. Fix this issue by
repeating the test a few times with longer delay inbetween attempts.
This gets rid of excessive hardware resets that appear frequently on
some AR9132 based devices, but could also happen on AR9280.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Reported-by: Björn Smedman <bjorn.smedman@venatech.se>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>

...

This commit is contained in:

Felix Fietkau 2010-07-02 00:09:52 +02:00 • committed by John W. Linville

parent 54bd5006b0

commit 347809fc2c

3 changed files with 28 additions and 2 deletions

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2

drivers/net/wireless/ath/ath9k/ath9k.h

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1

drivers/net/wireless/ath/ath9k/init.c

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27

drivers/net/wireless/ath/ath9k/main.c

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