USB: missing error check in emi62

the emi62 also lacks an error check.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/misc/emi62.c

@@ -123,6 +123,10 @@ static int emi62_load_firmware (struct usb_device *dev)
 
 	/* De-assert reset (let the CPU run) */
 	err = emi62_set_reset(dev,0);
+	if (err < 0) {
+		err("%s - error loading firmware: error = %d", __FUNCTION__, err);
+		goto wraperr;
+	}
 	msleep(250);	/* let device settle */
 
 	/* 2. We upload the FPGA firmware into the EMI