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brcmfmac: use lock in brcmf_fws_del_interface()

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When deleting an interface in firmware-signalling module it will
clear any destination descriptors. To avoid concurrency issues it
should take the lock using brcmf_fws_lock().

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arend van Spriel 2013-04-17 21:25:55 +02:00 committed by John W. Linville
parent a5e9d805f9
commit 6d421e54c2
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
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@ -1821,14 +1821,17 @@ void brcmf_fws_add_interface(struct brcmf_if *ifp)
void brcmf_fws_del_interface(struct brcmf_if *ifp)
{
struct brcmf_fws_mac_descriptor *entry = ifp->fws_desc;
ulong flags;
brcmf_dbg(TRACE, "enter: idx=%d\n", ifp->bssidx);
if (!entry)
return;
brcmf_fws_lock(ifp->drvr, flags);
ifp->fws_desc = NULL;
brcmf_fws_clear_mac_descriptor(entry);
brcmf_fws_cleanup(ifp->drvr->fws, ifp->ifidx);
brcmf_fws_unlock(ifp->drvr, flags);
}
static void brcmf_fws_dequeue_worker(struct work_struct *worker)