From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
The call to ieee80211_probereq_get can return NULL if a skb allocation
fails, so add a null pointer check and free an earlier skb on the error
exit return path.
Fixes: 7fdcb8e12660 ("rsi: add support for hardware scan offload")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/net/wireless/rsi/rsi_91x_mgmt.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/wireless/rsi/rsi_91x_mgmt.c b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
index 8c17842ac507..844f2fac298f 100644
--- a/drivers/net/wireless/rsi/rsi_91x_mgmt.c
+++ b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
@@ -1726,6 +1726,10 @@ int rsi_send_bgscan_probe_req(struct rsi_common *common,
probereq_skb = ieee80211_probereq_get(common->priv->hw, vif->addr, ssid,
ssid_len, scan_req->ie_len);
+ if (!probereq_skb) {
+ dev_kfree_skb(skb);
+ return -ENOMEM;
+ }
memcpy(&skb->data[frame_len], probereq_skb->data, probereq_skb->len);
--
2.20.1
