[media] go7007-loader: fix usb_dev leak

There is usb_get_dev() in go7007_loader_probe(),
but there is no usb_put_dev() anywhere.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/staging/media/go7007/go7007-loader.c b/drivers/staging/media/go7007/go7007-loader.c
index 10bb41c..eecb1f2 100644 (file)
--- a/drivers/staging/media/go7007/go7007-loader.c
+++ b/drivers/staging/media/go7007/go7007-loader.c
@@ -59,7 +59,7 @@ static int go7007_loader_probe(struct usb_interface *interface,
 
        if (usbdev->descriptor.bNumConfigurations != 1) {
                dev_err(&interface->dev, "can't handle multiple config\n");
-               return -ENODEV;
+               goto failed2;
        }
 
        vendor = le16_to_cpu(usbdev->descriptor.idVendor);
@@ -108,6 +108,7 @@ static int go7007_loader_probe(struct usb_interface *interface,
        return 0;
 
 failed2:
+       usb_put_dev(usbdev);
        dev_err(&interface->dev, "probe failed\n");
        return -ENODEV;
 }
@@ -115,6 +116,7 @@ failed2:
 static void go7007_loader_disconnect(struct usb_interface *interface)
 {
        dev_info(&interface->dev, "disconnect\n");
+       usb_put_dev(interface_to_usbdev(interface));
        usb_set_intfdata(interface, NULL);
 }