Commit d70d70ae authored Mar 20, 2019 by Aditya Pakki Committed by Greg Kroah-Hartman Mar 21, 2019

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 <pakki001@umn.edu>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 7671ce0d

drivers/staging/rtlwifi/rtl8822be/fw.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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);

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