| Message ID | 20220407143049.126104-1-manivannan.sadhasivam@linaro.org |
|---|---|
| State | Accepted |
| Commit | c38f83bae4037023827c85e045841d0421f85034 |
| Headers | show |
| Series | bus: mhi: host: pci_generic: Flush recovery wq during freeze | expand |
diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c index ef85dbfb3216..c65f749c05bf 100644 --- a/drivers/bus/mhi/host/pci_generic.c +++ b/drivers/bus/mhi/host/pci_generic.c @@ -1060,6 +1060,7 @@ static int __maybe_unused mhi_pci_freeze(struct device *dev) * the intermediate restore kernel reinitializes MHI device with new * context. */ + flush_workqueue(system_long_wq); if (test_and_clear_bit(MHI_PCI_DEV_STARTED, &mhi_pdev->status)) { mhi_power_down(mhi_cntrl, true); mhi_unprepare_after_power_down(mhi_cntrl);
It is possible that the recovery work might be running while the freeze gets executed (during hibernation etc.,). Currently, we don't powerdown the stack if it is not up but if the recovery work completes after freeze, then the device will be up afterwards. This will not be a sane situation. So let's flush the recovery workqueue before trying to powerdown the device. Cc: stable@vger.kernel.org Fixes: 5f0c2ee1fe8d ("bus: mhi: pci-generic: Fix hibernation") Reported-by: Bhaumik Vasav Bhatt <quic_bbhatt@quicinc.com> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> --- drivers/bus/mhi/host/pci_generic.c | 1 + 1 file changed, 1 insertion(+)