From d70d70aec9632679dd00dcc1b1e8b2517e2c7da0 Mon Sep 17 00:00:00 2001 From: Aditya Pakki Date: Wed, 20 Mar 2019 12:02:49 -0500 Subject: staging: rtlwifi: rtl8822b: fix to avoid potential NULL pointer dereference skb allocated via dev_alloc_skb can fail and return a NULL pointer. This patch avoids such a scenario and returns, consistent with other invocations. Signed-off-by: Aditya Pakki Reviewed-by: Mukesh Ojha Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtlwifi/rtl8822be/fw.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/staging') diff --git a/drivers/staging/rtlwifi/rtl8822be/fw.c b/drivers/staging/rtlwifi/rtl8822be/fw.c index f061dd1382aa..cf6b7a80b753 100644 --- a/drivers/staging/rtlwifi/rtl8822be/fw.c +++ b/drivers/staging/rtlwifi/rtl8822be/fw.c @@ -743,6 +743,8 @@ void rtl8822be_set_fw_rsvdpagepkt(struct ieee80211_hw *hw, bool b_dl_finished) u1_rsvd_page_loc, 3); skb = dev_alloc_skb(totalpacketlen); + if (!skb) + return; memcpy((u8 *)skb_put(skb, totalpacketlen), &reserved_page_packet, totalpacketlen); -- cgit