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wl1271: Check vif for NULL when indicating beacon-loss

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Because the interface is started and the vif are created and destroyed
separately, there is a slim possibility beacon-loss indications occur while
there is no vif - causing a kernel-oops unless checked.

Add checking for the vif.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Juuso Oikarinen 2009-12-11 15:41:09 +02:00 committed by John W. Linville
parent 38ad2d87d4
commit 04477bf095
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/wl12xx/wl1271_event.c
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@ -150,7 +150,7 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
return ret;
}
if (beacon_loss) {
if (wl->vif && beacon_loss) {
/* Obviously, it's dangerous to release the mutex while
we are holding many of the variables in the wl struct.
That's why it's done last in the function, and care must