V4L/DVB (11822): Siano: smscore - bug fix at get_device_mode

Fix bug that cause error log to echo also if success
Signed-off-by: NUri Shkolnik <uris@siano-ms.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/siano/smscoreapi.c

@@ -905,7 +905,7 @@ int smscore_set_device_mode(struct smscore_device_t *coredev, int mode)
 		coredev->device_flags &= ~SMS_DEVICE_NOT_READY;
 	}
 
-	if (rc != 0)
+	if (rc < 0)
 		sms_err("return error code %d.", rc);
 	return rc;
 }