From 2655971ad4b34e97dd921df16bb0b08db9449df7 Mon Sep 17 00:00:00 2001
From: Aditya Pakki <pakki001@umn.edu>
Date: Sat, 13 Jun 2020 22:15:25 -0500
Subject: [PATCH] usb: dwc3: pci: Fix reference count leak in dwc3_pci_resume_work
Git-commit: 2655971ad4b34e97dd921df16bb0b08db9449df7
Patch-mainline: v5.8-rc3
References: git-fixes
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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 b67372737dc9..96c05b121fac 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);
--
2.16.4