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da02086104
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18338 3c298f89-4303-0410-b956-a3cf2f4a3e73
24 lines
754 B
Diff
24 lines
754 B
Diff
Subject: [PATCH] b43: work around a locking issue in ->set_tim()
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ops->set_tim() must be atomic, so b43 trying to acquire a mutex leads
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to a kernel crash. This patch trades an easy to trigger crash in AP
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mode for an unlikely race condition. According to Michael, the real
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fix would be to allow set_tim() callbacks to sleep, since b43 is
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not the only driver that needs to sleep in all callbacks.
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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--- a/drivers/net/wireless/b43/main.c
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+++ b/drivers/net/wireless/b43/main.c
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@@ -4534,9 +4534,8 @@ static int b43_op_beacon_set_tim(struct
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{
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struct b43_wl *wl = hw_to_b43_wl(hw);
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- mutex_lock(&wl->mutex);
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+ /* FIXME: add locking */
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b43_update_templates(wl);
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- mutex_unlock(&wl->mutex);
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return 0;
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}
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