[net-next PATCH 5/5] net: netcp: support probe deferral
From: Murali Karicheri
Date: Mon Mar 26 2018 - 16:13:29 EST
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 <m-karicheri2@xxxxxx>
---
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