From 60209d482b97743915883d293c8b85226d230c19 Mon Sep 17 00:00:00 2001 From: Ping-Ke Shih Date: Tue, 12 Mar 2019 17:06:48 +0800 Subject: rtlwifi: fix potential NULL pointer dereference In case dev_alloc_skb fails, the fix safely returns to avoid potential NULL pointer dereference. Signed-off-by: Ping-Ke Shih Signed-off-by: Kalle Valo --- drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net/wireless/realtek/rtlwifi/rtl8188ee') diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c index 203e7b574e84..e2e0bfbc24fe 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c @@ -600,6 +600,8 @@ void rtl88e_set_fw_rsvdpagepkt(struct ieee80211_hw *hw, bool b_dl_finished) u1rsvdpageloc, 3); skb = dev_alloc_skb(totalpacketlen); + if (!skb) + return; skb_put_data(skb, &reserved_page_packet, totalpacketlen); rtstatus = rtl_cmd_send_packet(hw, skb); -- cgit