From: Larry Finger Date: Fri, 26 Sep 2014 21:40:22 +0000 (-0500) Subject: rtlwifi: rtl8188ee: rtl8821ae: Fix a queue locking problem X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7fe3b3abb5da3a105d87640db693c41259138294;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git rtlwifi: rtl8188ee: rtl8821ae: Fix a queue locking problem The code fails to lock the skb queue, which leads to a number of problems. This patch also fixes a Sparse warning about using a memset of 1 byte. Signed-off-by: Larry Finger Cc: troy_tan@realsil.com.cn Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/rtlwifi/rtl8188ee/fw.c b/drivers/net/wireless/rtlwifi/rtl8188ee/fw.c index eda6617da97f..8d4cf2edeed4 100644 --- a/drivers/net/wireless/rtlwifi/rtl8188ee/fw.c +++ b/drivers/net/wireless/rtlwifi/rtl8188ee/fw.c @@ -770,7 +770,7 @@ void rtl88e_set_p2p_ps_offload_cmd(struct ieee80211_hw *hw, u8 p2p_ps_state) switch (p2p_ps_state) { case P2P_PS_DISABLE: RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "P2P_PS_DISABLE\n"); - memset(p2p_ps_offload, 0, 1); + memset(p2p_ps_offload, 0, sizeof(*p2p_ps_offload)); break; case P2P_PS_ENABLE: RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "P2P_PS_ENABLE\n"); diff --git a/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c b/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c index f74b7fb531c2..f2b9713c456e 100644 --- a/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c +++ b/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c @@ -89,7 +89,9 @@ static void _rtl88ee_return_beacon_queue_skb(struct ieee80211_hw *hw) struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[BEACON_QUEUE]; + unsigned long flags; + spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags); while (skb_queue_len(&ring->queue)) { struct rtl_tx_desc *entry = &ring->desc[ring->idx]; struct sk_buff *skb = __skb_dequeue(&ring->queue); @@ -101,6 +103,7 @@ static void _rtl88ee_return_beacon_queue_skb(struct ieee80211_hw *hw) kfree_skb(skb); ring->idx = (ring->idx + 1) % ring->entries; } + spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); } static void _rtl88ee_disable_bcn_sub_func(struct ieee80211_hw *hw) diff --git a/drivers/net/wireless/rtlwifi/rtl8821ae/fw.c b/drivers/net/wireless/rtlwifi/rtl8821ae/fw.c index 6f71aaa76db7..2efdb64d5528 100644 --- a/drivers/net/wireless/rtlwifi/rtl8821ae/fw.c +++ b/drivers/net/wireless/rtlwifi/rtl8821ae/fw.c @@ -1757,7 +1757,7 @@ void rtl8821ae_set_p2p_ps_offload_cmd(struct ieee80211_hw *hw, u8 p2p_ps_state) switch (p2p_ps_state) { case P2P_PS_DISABLE: RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "P2P_PS_DISABLE\n"); - memset(p2p_ps_offload, 0, 1); + memset(p2p_ps_offload, 0, sizeof(*p2p_ps_offload)); break; case P2P_PS_ENABLE: RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "P2P_PS_ENABLE\n");