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wifi: rtw89: check return value of ieee80211_probereq_get() for RNR

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[ Upstream commit 630d5d8f2bf6b340202b6bc2c05d794bbd8e4c1c ]

The return value of ieee80211_probereq_get() might be NULL, so check it
before using to avoid NULL pointer access.

Addresses-Coverity-ID: 1529805 ("Dereference null return value")

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240919081216.28505-2-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ping-Ke Shih
2024-09-19 16:12:14 +08:00
committed by Greg Kroah-Hartman
parent 1159d74ed4
commit 1a0f54cb3f
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/realtek/rtw89/fw.c
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@@ -3662,6 +3662,9 @@ static int rtw89_update_6ghz_rnr_chan(struct rtw89_dev *rtwdev,
skb = ieee80211_probereq_get(rtwdev->hw, rtwvif->mac_addr,
NULL, 0, req->ie_len);
if (!skb)
return -ENOMEM;
skb_put_data(skb, ies->ies[NL80211_BAND_6GHZ], ies->len[NL80211_BAND_6GHZ]);
skb_put_data(skb, ies->common_ies, ies->common_ie_len);
hdr = (struct ieee80211_hdr *)skb->data;