Even in failed case of pm_runtime_get_sync, the usage_count is incremented. In order to keep the usage_count with correct value and runtime power management to behave correctly, call pm_runtime_put(_sync) in such case.
Signed-off-by Liu Chuansheng <[email protected]> Signed-off-by: Li Fei <[email protected]> --- drivers/usb/core/hub.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 5480352..b68493b 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -3152,6 +3152,7 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg) if (status < 0) { dev_dbg(&udev->dev, "can't resume usb port, status %d\n", status); + pm_runtime_put_sync(&port_dev->dev); return status; } } -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
