Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.19 23/27] usb: dwc3: pci: Fix reference count leak in dwc3_pci_resume_work | Date | Wed, 1 Jul 2020 21:26:11 -0400 |
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From: Aditya Pakki <pakki001@umn.edu>
[ Upstream commit 2655971ad4b34e97dd921df16bb0b08db9449df7 ]
dwc3_pci_resume_work() calls pm_runtime_get_sync() that increments the reference counter. In case of failure, decrement the reference before returning.
Signed-off-by: Aditya Pakki <pakki001@umn.edu> Signed-off-by: Felipe Balbi <balbi@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/usb/dwc3/dwc3-pci.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index b2fd505938a0c..389ec4c689c44 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -204,8 +204,10 @@ static void dwc3_pci_resume_work(struct work_struct *work) int ret; ret = pm_runtime_get_sync(&dwc3->dev); - if (ret) + if (ret) { + pm_runtime_put_sync_autosuspend(&dwc3->dev); return; + } pm_runtime_mark_last_busy(&dwc3->dev); pm_runtime_put_sync_autosuspend(&dwc3->dev); -- 2.25.1
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