From: Zheng Yongjun <zhengyongjun3@huawei.com>
To: <balbi@kernel.org>, <linux-usb@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Cc: <gregkh@linuxfoundation.org>
Subject: [PATCH] usb: dwc3: pci: Fix pm_runtime_get_sync() error checking
Date: Fri, 22 Apr 2022 06:26:52 +0000 [thread overview]
Message-ID: <20220422062652.10575-1-zhengyongjun3@huawei.com> (raw)
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>
---
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 33f657d83246..491b5b05d196 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -286,7 +286,7 @@ 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;
}
--
2.17.1
reply other threads:[~2022-04-22 6:31 UTC|newest]
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