diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 89a64ebd620f..aac10740f575 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -2655,9 +2655,7 @@ static int ath11k_install_key(struct ath11k_vif *arvif,
 		return 0;
 
 	if (cmd == DISABLE_KEY) {
-		/* TODO: Check if FW expects  value other than NONE for del */
-		/* arg.key_cipher = WMI_CIPHER_NONE; */
-		arg.key_len = 0;
+		arg.key_cipher = WMI_CIPHER_NONE;
 		arg.key_data = NULL;
 		goto install;
 	}
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index c22ec921b2e9..e75e6ebdf2a6 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -1671,7 +1671,8 @@ int ath11k_wmi_vdev_install_key(struct ath11k *ar,
 	tlv = (struct wmi_tlv *)(skb->data + sizeof(*cmd));
 	tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_BYTE) |
 		      FIELD_PREP(WMI_TLV_LEN, key_len_aligned);
-	memcpy(tlv->value, (u8 *)arg->key_data, key_len_aligned);
+	if (arg->key_data)
+		memcpy(tlv->value, (u8 *)arg->key_data, key_len_aligned);
 
 	ret = ath11k_wmi_cmd_send(wmi, skb, WMI_VDEV_INSTALL_KEY_CMDID);
 	if (ret) {