lkml.org 
[lkml]   [2020]   [Jul]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.19 21/58] usb: dwc3: pci: Fix reference count leak in dwc3_pci_resume_work
Date
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


\
 
 \ /
  Last update: 2020-07-14 20:47    [W:0.215 / U:0.144 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site