From: Zheng Yongjun zhengyongjun3@huawei.com
[ 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@huawei.com Link: https://lore.kernel.org/r/20220422062652.10575-1-zhengyongjun3@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/dwc3/dwc3-pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index f08b2178fd32..9c8887615701 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -256,7 +256,7 @@ 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; }