From 21f706bb10cf7d905d89ceb3f689b8b844520127 Mon Sep 17 00:00:00 2001 From: Murali Karicheri Date: Tue, 17 Apr 2018 17:30:40 -0400 Subject: [PATCH] net: netcp: support probe deferral 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 Signed-off-by: David S. Miller --- 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 9c51b25d7fd0..736f6f713c09 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; -- 2.30.2