| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 235/276] usb: core: Add PM runtime calls to usb_hcd_platform_shutdown | Date | Wed, 29 May 2019 20:06:33 -0700 |
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[ Upstream commit 8ead7e817224d7832fe51a19783cb8fcadc79467 ]
If ohci-platform is runtime suspended, we can currently get an "imprecise external abort" on reboot with ohci-platform loaded when PM runtime is implemented for the SoC.
Let's fix this by adding PM runtime support to usb_hcd_platform_shutdown.
Signed-off-by: Tony Lindgren <tony@atomide.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/usb/core/hcd.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 1c21955fe7c00..b82a7d787add8 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -3017,6 +3017,9 @@ usb_hcd_platform_shutdown(struct platform_device *dev) { struct usb_hcd *hcd = platform_get_drvdata(dev); + /* No need for pm_runtime_put(), we're shutting down */ + pm_runtime_get_sync(&dev->dev); + if (hcd->driver->shutdown) hcd->driver->shutdown(hcd); } -- 2.20.1
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