From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752084AbeCZUNH (ORCPT ); Mon, 26 Mar 2018 16:13:07 -0400 Received: from lelnx194.ext.ti.com ([198.47.27.80]:36054 "EHLO lelnx194.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751824AbeCZUNC (ORCPT ); Mon, 26 Mar 2018 16:13:02 -0400 From: Murali Karicheri To: , , , , , , , , , Subject: [net-next PATCH 5/5] net: netcp: support probe deferral Date: Mon, 26 Mar 2018 16:15:12 -0400 Message-ID: <1522095312-23249-6-git-send-email-m-karicheri2@ti.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1522095312-23249-1-git-send-email-m-karicheri2@ti.com> References: <1522095312-23249-1-git-send-email-m-karicheri2@ti.com> MIME-Version: 1.0 Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The netcp driver shouldn't proceed until the knav qmss and dma devices are ready. So return -EPROBE_DEFER if these devices are not ready. Signed-off-by: Murali Karicheri --- drivers/net/ethernet/ti/netcp_core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/ti/netcp_core.c b/drivers/net/ethernet/ti/netcp_core.c index 9c51b25..736f6f7 100644 --- a/drivers/net/ethernet/ti/netcp_core.c +++ b/drivers/net/ethernet/ti/netcp_core.c @@ -2158,6 +2158,10 @@ static int netcp_probe(struct platform_device *pdev) struct netcp_module *module; int ret; + if (!knav_dma_device_ready() || + !knav_qmss_device_ready()) + return -EPROBE_DEFER; + if (!node) { dev_err(dev, "could not find device info\n"); return -ENODEV; -- 1.9.1