From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Fri, 27 May 2016 10:54:28 +0200 Subject: [PATCH] brcmfmac: print errors if creating interface fails This is helpful for debugging. Without this all I was getting from "iw" command on failed creating of P2P interface was: > command failed: Too many open files in system (-23) Signed-off-by: Rafal Milecki [arend@broadcom.com: reduce error prints upon iface creation] Signed-off-by: Arend van Spriel Reviewed-by: Julian Calaby Signed-off-by: Kalle Valo --- --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -684,20 +684,24 @@ static struct wireless_dev *brcmf_cfg802 return ERR_PTR(-EOPNOTSUPP); case NL80211_IFTYPE_AP: wdev = brcmf_ap_add_vif(wiphy, name, flags, params); - if (!IS_ERR(wdev)) - brcmf_cfg80211_update_proto_addr_mode(wdev); - return wdev; + break; case NL80211_IFTYPE_P2P_CLIENT: case NL80211_IFTYPE_P2P_GO: case NL80211_IFTYPE_P2P_DEVICE: wdev = brcmf_p2p_add_vif(wiphy, name, name_assign_type, type, flags, params); - if (!IS_ERR(wdev)) - brcmf_cfg80211_update_proto_addr_mode(wdev); - return wdev; + break; case NL80211_IFTYPE_UNSPECIFIED: default: return ERR_PTR(-EINVAL); } + + if (IS_ERR(wdev)) + brcmf_err("add iface %s type %d failed: err=%d\n", + name, type, (int)PTR_ERR(wdev)); + else + brcmf_cfg80211_update_proto_addr_mode(wdev); + + return wdev; } static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc) --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c @@ -2030,8 +2030,6 @@ static int brcmf_p2p_request_p2p_if(stru err = brcmf_fil_iovar_data_set(ifp, "p2p_ifadd", &if_request, sizeof(if_request)); - if (err) - return err; return err; }