diff options
| author | Ping-Ke Shih <pkshih@realtek.com> | 2019-03-12 12:06:48 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-04-04 13:25:27 +0300 |
| commit | 60209d482b97743915883d293c8b85226d230c19 (patch) | |
| tree | 4dfd3f45af50e21049bf6544bd45b578221e06b2 /drivers/net/wireless/realtek/rtlwifi/rtl8821ae | |
| parent | 765976285a8c8db3f0eb7f033829a899d0c2786e (diff) | |
| download | linux-60209d482b97743915883d293c8b85226d230c19.tar.xz | |
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 <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/realtek/rtlwifi/rtl8821ae')
| -rw-r--r-- | drivers/net/wireless/realtek/rtlwifi/rtl8821ae/fw.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/fw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/fw.c index dc0eb692088f..fe32d397d287 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/fw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/fw.c @@ -1623,6 +1623,8 @@ out: &reserved_page_packet_8812[0], totalpacketlen); skb = dev_alloc_skb(totalpacketlen); + if (!skb) + return; skb_put_data(skb, &reserved_page_packet_8812, totalpacketlen); rtstatus = rtl_cmd_send_packet(hw, skb); @@ -1759,6 +1761,8 @@ out: &reserved_page_packet_8821[0], totalpacketlen); skb = dev_alloc_skb(totalpacketlen); + if (!skb) + return; skb_put_data(skb, &reserved_page_packet_8821, totalpacketlen); rtstatus = rtl_cmd_send_packet(hw, skb); |