Web lists-archives.com

[PATCH] staging: rtlwifi: Fix 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@xxxxxxx>
---
 drivers/staging/rtlwifi/rtl8822be/fw.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/rtlwifi/rtl8822be/fw.c b/drivers/staging/rtlwifi/rtl8822be/fw.c
index f061dd1382aa..8fab9c8d1dd0 100644
--- a/drivers/staging/rtlwifi/rtl8822be/fw.c
+++ b/drivers/staging/rtlwifi/rtl8822be/fw.c
@@ -743,6 +743,9 @@ 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);
 
-- 
2.17.1