When unloading the driver with a p2pdev interface it resulted in a warning upon calling wiphy_unregister() and subsequently a crash in the driver. This patch assures the p2pdev is unregistered calling unregister_wdev() before doing the wiphy_unregister().
Reviewed-by: Hante Meuleman <[email protected]> Reviewed-by: Franky (Zhenhui) Lin <[email protected]> Reviewed-by: Pieter-Paul Giesberts <[email protected]> Signed-off-by: Arend van Spriel <[email protected]> --- drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c | 4 +--- drivers/net/wireless/brcm80211/brcmfmac/core.c | 1 + drivers/net/wireless/brcm80211/brcmfmac/p2p.c | 6 ++++-- 3 files changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c index 6e45b40..d86d1f1 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c @@ -6207,10 +6207,8 @@ void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg) if (!cfg) return; - WARN_ON(!list_empty(&cfg->vif_list)); - wiphy_unregister(cfg->wiphy); brcmf_btcoex_detach(cfg); - brcmf_p2p_detach(&cfg->p2p); + wiphy_unregister(cfg->wiphy); wl_deinit_priv(cfg); brcmf_free_wiphy(cfg->wiphy); } diff --git a/drivers/net/wireless/brcm80211/brcmfmac/core.c b/drivers/net/wireless/brcm80211/brcmfmac/core.c index 8cf4a1e..866b818 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/core.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/core.c @@ -1098,6 +1098,7 @@ void brcmf_detach(struct device *dev) /* stop firmware event handling */ brcmf_fweh_detach(drvr); + brcmf_p2p_detach(&drvr->config->p2p); brcmf_bus_change_state(bus_if, BRCMF_BUS_DOWN); diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c index 920fcd9..2e1598f 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c @@ -16,6 +16,7 @@ #include <linux/slab.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> +#include <linux/rtnetlink.h> #include <net/cfg80211.h> #include <brcmu_wifi.h> @@ -2421,8 +2422,9 @@ void brcmf_p2p_detach(struct brcmf_p2p_info *p2p) brcmf_p2p_cancel_remain_on_channel(vif->ifp); brcmf_p2p_deinit_discovery(p2p); /* remove discovery interface */ - brcmf_free_vif(vif); - p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL; + rtnl_lock(); + brcmf_p2p_delete_p2pdev(p2p, vif); + rtnl_unlock(); } /* just set it all to zero */ memset(p2p, 0, sizeof(*p2p)); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
