From: Aditya Pakki <pakki001@umn.edu>
Date: Sun, 14 Jun 2020 03:15:25 +0000 (-0500)
Subject: usb: dwc3: pci: Fix reference count leak in dwc3_pci_resume_work
X-Git-Tag: v5.8-rc3~17^2^2~3
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2655971ad4b34e97dd921df16bb0b08db9449df7;p=thirdparty%2Fkernel%2Flinux.git

usb: dwc3: pci: Fix reference count leak in dwc3_pci_resume_work

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>
---

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index b67372737dc9b..96c05b121fac8 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -206,8 +206,10 @@ 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);