mac80211: perform scan cancel in hw reset work

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Move ieee80211_scan_cancel() and all other related code to
ieee80211_restart_work() as ieee80211_restart_hw() is intended to be
callable from any context.

Fix a bug that RTNL lock is not taken during ieee80211_cancel_scan().

Take local->mtx before WARN(test_bit(SCAN_HW_SCANNING, &local->scanning)
to prevent the race condition with __ieee80211_start_scan() described
here: http://marc.info/?l=linux-wireless&m=128516716810537&w=2

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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Stanislaw Gruszka 2010-10-01 14:05:27 +02:00 • committed by John W. Linville

parent 8e0167a4bd

commit bc86863de6

1 changed files with 10 additions and 9 deletions

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net/mac80211/main.c

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