This is a note to let you know that I've just added the patch titled
usb: dwc3: pci: Fix pm_runtime_get_sync() error checking
to the 5.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-dwc3-pci-fix-pm_runtime_get_sync-error-checking.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit da14dba93323296115306b743d5e2d277a92860a
Author: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx>
Date: Fri Apr 22 06:26:52 2022 +0000
usb: dwc3: pci: Fix pm_runtime_get_sync() error checking
[ Upstream commit a03e2ddab8e735e2cc315609b297b300e9cc60d2 ]
If the device is already in a runtime PM enabled state
pm_runtime_get_sync() will return 1, so a test for negative
value should be used to check for errors.
Fixes: 8eed00b237a28 ("usb: dwc3: pci: Runtime resume child device from wq")
Signed-off-by: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220422062652.10575-1-zhengyongjun3@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 2e19e0e4ea53..ba51de7dd760 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -288,7 +288,7 @@ static void dwc3_pci_resume_work(struct work_struct *work)
int ret;
ret = pm_runtime_get_sync(&dwc3->dev);
- if (ret) {
+ if (ret < 0) {
pm_runtime_put_sync_autosuspend(&dwc3->dev);
return;
}
