[PATCH 5.17 022/298] usb: dwc3: pci: Fix pm_runtime_get_sync() error checking

[Greg Kroah-Hartman]

From: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx>

[ 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>
---
 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;
 	}
-- 
2.35.1