Merge "net: qrtr: mhi: Use spin_lock_bh in qcom_mhi_qrtr_send"

{

	struct qrtr_mhi_dev *qdev = container_of(ep, struct qrtr_mhi_dev, ep);

	struct qrtr_mhi_pkt *pkt;

	unsigned long flags;

	int rc;

	rc = skb_linearize(skb);

	kref_get(&pkt->refcount);

	pkt->skb = skb;

	spin_lock_irqsave(&qdev->ul_lock, flags);

	spin_lock_bh(&qdev->ul_lock);

	list_add_tail(&pkt->node, &qdev->ul_pkts);

	rc = mhi_queue_transfer(qdev->mhi_dev, DMA_TO_DEVICE, skb, skb->len,

				MHI_EOT);

		list_del(&pkt->node);

		kfree_skb(skb);

		kfree(pkt);

		spin_unlock_irqrestore(&qdev->ul_lock, flags);

		spin_unlock_bh(&qdev->ul_lock);

		return rc;

	}

	spin_unlock_irqrestore(&qdev->ul_lock, flags);

	spin_unlock_bh(&qdev->ul_lock);

	if (skb->sk)

		sock_hold(skb->sk);