From b397492a8c1022887a9b2fb925fe92e69ce0ad4d Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Sat, 20 Nov 2010 13:15:27 +0100 Subject: carl9170: fix virtual interface setup crash This patch fixes a faulty bound check which caused a crash when too many virtual interface were brought up. BUG: unable to handle kernel NULL pointer dereference at 00000004 IP: [] carl9170_op_add_interface+0x1d7/0x2c0 [carl9170] *pde = 00000000 Oops: 0002 [#1] PREEMPT Modules linked in: carl9170 [...] Pid: 4720, comm: wpa_supplicant Not tainted 2.6.37-rc2-wl+ EIP: 0060:[] EFLAGS: 00210206 CPU: 0 EIP is at carl9170_op_add_interface+0x1d7/0x2c0 [carl9170] EAX: 00000000 ... Process wpa_supplicant Stack: f4f88f34 fffffff4 .. Call Trace: [] ? ieee80211_do_open+0x406/0x5c0 [mac80211] [...] Code: <89> 42 04 ... EIP: [] carl9170_op_add_interface+0x1d7/0x2c0 [carl9170] CR2: 0000000000000004 Signed-off-by: Christian Lamparter Signed-off-by: John W. Linville --- drivers/net/wireless/ath/carl9170/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/wireless/ath/carl9170/main.c') diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c index 980ae70ea424..a314c2c2bfbe 100644 --- a/drivers/net/wireless/ath/carl9170/main.c +++ b/drivers/net/wireless/ath/carl9170/main.c @@ -647,7 +647,7 @@ init: } unlock: - if (err && (vif_id != -1)) { + if (err && (vif_id >= 0)) { vif_priv->active = false; bitmap_release_region(&ar->vif_bitmap, vif_id, 0); ar->vifs--; -- cgit v1.2.3 From c426ee247e40a70490f3d67d3c9c7d1aba54516f Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 26 Nov 2010 11:38:04 +0100 Subject: ath9k/carl9170: advertise P2P With some upcoming changes we'd like to use the interface types for P2P capability tests. Enable them now so that when we add those tests in wpa_supplicant, nothing will break. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/init.c | 2 ++ drivers/net/wireless/ath/carl9170/fw.c | 3 ++- drivers/net/wireless/ath/carl9170/main.c | 3 ++- 3 files changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/net/wireless/ath/carl9170/main.c') diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index c29eea26a777..14b8ab386daf 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -661,6 +661,8 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) hw->flags |= IEEE80211_HW_MFP_CAPABLE; hw->wiphy->interface_modes = + BIT(NL80211_IFTYPE_P2P_GO) | + BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_AP) | BIT(NL80211_IFTYPE_WDS) | BIT(NL80211_IFTYPE_STATION) | diff --git a/drivers/net/wireless/ath/carl9170/fw.c b/drivers/net/wireless/ath/carl9170/fw.c index ae6c006bbc56..546b4e4ec5ea 100644 --- a/drivers/net/wireless/ath/carl9170/fw.c +++ b/drivers/net/wireless/ath/carl9170/fw.c @@ -291,7 +291,8 @@ static int carl9170_fw(struct ar9170 *ar, const __u8 *data, size_t len) if (SUPP(CARL9170FW_WLANTX_CAB)) { ar->hw->wiphy->interface_modes |= - BIT(NL80211_IFTYPE_AP); + BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_P2P_GO); } } diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c index a314c2c2bfbe..dc7b30b170d0 100644 --- a/drivers/net/wireless/ath/carl9170/main.c +++ b/drivers/net/wireless/ath/carl9170/main.c @@ -1631,7 +1631,8 @@ void *carl9170_alloc(size_t priv_size) * supports these modes. The code which will add the * additional interface_modes is in fw.c. */ - hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); + hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_P2P_CLIENT); hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS | IEEE80211_HW_REPORTS_TX_ACK_STATUS | -- cgit v1.2.3