[PATCH net RFT] ch9200: do return USB errors from control_write()

[Sergey Shtylyov]

Compared with control_read(), control_write() looks really strange:
it ignores any errors returned by usb_control_msg(), always returning
0 instead, despite overriding a positive result of usb_control_msg()
(indicating short transfer) to -EINVAL before doing that. Drop that
dubious *return* and propagate USB errors to the callers...

Fixes: 4a476bd6d1d9 ("usbnet: New driver for QinHeng CH9200 devices")
Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxxxxxxxx>

---
 drivers/net/usb/ch9200.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/usb/ch9200.c b/drivers/net/usb/ch9200.c
index a206ffa76f1b..3a81e9e96fd3 100644
--- a/drivers/net/usb/ch9200.c
+++ b/drivers/net/usb/ch9200.c
@@ -168,8 +168,6 @@ static int control_write(struct usbnet *dev, unsigned char request,
 		err = -EINVAL;
 	kfree(buf);
 
-	return 0;
-
 err_out:
 	return err;
 }
-- 
2.55.0