staging: unisys: visorchannel_clear(): Avoid 64KB memory leak

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visorbus/visorchannel.c

@@ -236,7 +236,7 @@ visorchannel_clear(struct visorchannel *channel, ulong offset, u8 ch,
 		written += thisbytes;
 		nbytes -= thisbytes;
 	}
-	return 0;
+	err = 0;
 
 cleanup:
 	vfree(buf);