Messages in this thread Patch in this message | | | Subject | [PATCH 4/5 V3] usb: call pm_runtime_put_noidle in pm_runtime_get_sync failed case | From | Li Fei <> | Date | Fri, 01 Mar 2013 10:59:09 +0800 |
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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/noidle) in such case.
Signed-off-by Liu Chuansheng <chuansheng.liu@intel.com> Signed-off-by: Li Fei <fei.li@intel.com> --- drivers/usb/core/hub.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 5480352..4a6c055 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -3148,12 +3148,13 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg) if (port_dev->did_runtime_put) { status = pm_runtime_get_sync(&port_dev->dev); - port_dev->did_runtime_put = false; if (status < 0) { dev_dbg(&udev->dev, "can't resume usb port, status %d\n", status); + pm_runtime_put_noidle(&port_dev->dev); return status; } + port_dev->did_runtime_put = false; } /* Skip the initial Clear-Suspend step for a remote wakeup */ -- 1.7.4.1
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