From 683fbb42396106974c315897d8d379f9e7b8ee40 Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Sun, 2 Oct 2011 10:14:34 -0700 Subject: [PATCH] staging: brcm80211: only allow one call to add_interface callback The driver only supports one network interface to be associated with it. Only for the first call it does actually something. For subsequent calls it does return -ENODEV error code. Reported-by: Johannes Berg Reviewed-by: Roland Vossen Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Franky Lin Signed-off-by: Greg Kroah-Hartman --- drivers/staging/brcm80211/brcmsmac/mac80211_if.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/staging/brcm80211/brcmsmac/mac80211_if.c b/drivers/staging/brcm80211/brcmsmac/mac80211_if.c index 1fa95d7..6787498 100644 --- a/drivers/staging/brcm80211/brcmsmac/mac80211_if.c +++ b/drivers/staging/brcm80211/brcmsmac/mac80211_if.c @@ -341,7 +341,10 @@ brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) wl = hw->priv; LOCK(wl); - err = brcms_up(wl); + if (!wl->pub->up) + err = brcms_up(wl); + else + err = -ENODEV; UNLOCK(wl); if (err != 0) -- 2.7.4