[PATCH 4.19 09/55] staging: wlan-ng: ensure error return is actually returned

[Greg Kroah-Hartman]

From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

commit 4cc41cbce536876678b35e03c4a8a7bb72c78fa9 upstream.

Currently when the call to prism2sta_ifst fails a netdev_err error
is reported, error return variable result is set to -1 but the
function always returns 0 for success.  Fix this by returning
the error value in variable result rather than 0.

Addresses-Coverity: ("Unused value")
Fixes: 00b3ed168508 ("Staging: add wlan-ng prism2 usb driver")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20200114181604.390235-1-colin.king@xxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/staging/wlan-ng/prism2mgmt.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/wlan-ng/prism2mgmt.c
+++ b/drivers/staging/wlan-ng/prism2mgmt.c
@@ -959,7 +959,7 @@ int prism2mgmt_flashdl_state(struct wlan
 		}
 	}
 
-	return 0;
+	return result;
 }
 
 /*----------------------------------------------------------------