FROMLIST: bus: mhi: host: pci_generic: Add pm_runtime_forbid() in remove callback

qianyu-qcom · Ziyue Zhang · commit 5aadac8a9d0a · 2026-04-02T00:14:17.000-07:00
Add pm_runtime_forbid() to balance the pm_runtime_allow() call made during probe. Without this, the device remains in runtime PM allowed state after driver removal. Link: https://lore.kernel.org/all/20260303-b4-async_power_on-v2-2-d3db81eb457d@oss.qualcomm.com/ Fixes: 855a70c ("bus: mhi: Add MHI PCI support for WWAN modems") Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
@@ -1446,6 +1446,7 @@ static void mhi_pci_remove(struct pci_dev *pdev)
 		mhi_soc_reset(mhi_cntrl);
 
 	mhi_unregister_controller(mhi_cntrl);
+	pm_runtime_forbid(&pdev->dev);
 }
 
 static void mhi_pci_shutdown(struct pci_dev *pdev)

Original file line number	Diff line number	Diff line change
`@@ -1446,6 +1446,7 @@ static void mhi_pci_remove(struct pci_dev *pdev)`
`1446`	`1446`	`mhi_soc_reset(mhi_cntrl);`
`1447`	`1447`
`1448`	`1448`	`mhi_unregister_controller(mhi_cntrl);`
	`1449`	`+ pm_runtime_forbid(&pdev->dev);`
`1449`	`1450`	`}`
`1450`	`1451`
`1451`	`1452`	`static void mhi_pci_shutdown(struct pci_dev *pdev)`