Missing lock in sysfs operation when we want to close the connection in order
to check the status and send the down event in a safe way.
Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@xxxxxxxxxx>
---
drivers/usb/usbip/stub_dev.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c
index 3c6d452e3bf4..b4b452ce7120 100644
--- a/drivers/usb/usbip/stub_dev.c
+++ b/drivers/usb/usbip/stub_dev.c
@@ -118,6 +118,8 @@ static ssize_t usbip_sockfd_store(struct device *dev, struct device_attribute *a
} else {
dev_info(dev, "stub down\n");
+ mutex_lock(&sdev->ud.sysfs_lock);
+
spin_lock_irq(&sdev->ud.lock);
if (sdev->ud.status != SDEV_ST_USED)
goto err;
--
2.37.3
