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Commit 7e8531e8 authored by Vivek Pernamitta's avatar Vivek Pernamitta
Browse files

msm: pci: use local pointer for rpmsg_device while sending rpmsg 



Use local pointer for struct rpdev_device while sending rpmsg
to avoid crash if ADSP SSR triggered while handling
msm_pcie_drv_send_rpmsg().

Change-Id: Id0533611b629359142e54db428918cbce702ee44
Signed-off-by: default avatarVivek Pernamitta <vpernami@codeaurora.org>
parent f4e98f0c

drivers/pci/controller/pci-msm.c

+3 −1
Original line number Diff line number Diff line
@@ -6675,8 +6675,10 @@ static int msm_pcie_drv_send_rpmsg(struct msm_pcie_dev_t *pcie_dev, 
{

	struct msm_pcie_drv_info *drv_info = pcie_dev->drv_info;

	int ret;

	struct rpmsg_device *rpdev;



	mutex_lock(&pcie_drv.rpmsg_lock);

	rpdev = pcie_drv.rpdev;

	if (!pcie_drv.rpdev) {

		mutex_unlock(&pcie_drv.rpmsg_lock);

		return -EIO;
@@ -6693,7 +6695,7 @@ static int msm_pcie_drv_send_rpmsg(struct msm_pcie_dev_t *pcie_dev, 
	PCIE_DBG(pcie_dev, "PCIe: RC%d: DRV: sending rpmsg: command: 0x%x\n",

		pcie_dev->rc_idx, msg->pkt.dword[0]);



	ret = rpmsg_trysend(pcie_drv.rpdev->ept, msg, sizeof(*msg));

	ret = rpmsg_trysend(rpdev->ept, msg, sizeof(*msg));

	if (ret) {

		PCIE_ERR(pcie_dev, "PCIe: RC%d: DRV: failed to send rpmsg\n",

			pcie_dev->rc_idx);