From: Cheng Xu <chengyou@linux.alibaba.com>
Date: Mon, 20 Mar 2023 16:46:52 +0800
Subject: [PATCH] RDMA/erdma: Defer probing if netdevice can not be found
References: bsc#1012628
Patch-mainline: 6.2.12
Git-commit: 6bd1bca858f1734a75572a788213d1e1143f2f0a
[ Upstream commit 6bd1bca858f1734a75572a788213d1e1143f2f0a ]
ERDMA device may be probed before its associated netdevice, returning
-EPROBE_DEFER allows OS try to probe erdma device later.
Fixes: d55e6fb4803c ("RDMA/erdma: Add the erdma module")
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230320084652.16807-5-chengyou@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/infiniband/hw/erdma/erdma_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/erdma/erdma_main.c b/drivers/infiniband/hw/erdma/erdma_main.c
index 5dc31e5d..4a29a53a 100644
--- a/drivers/infiniband/hw/erdma/erdma_main.c
+++ b/drivers/infiniband/hw/erdma/erdma_main.c
@@ -56,7 +56,7 @@ static int erdma_netdev_event(struct notifier_block *nb, unsigned long event,
static int erdma_enum_and_get_netdev(struct erdma_dev *dev)
{
struct net_device *netdev;
- int ret = -ENODEV;
+ int ret = -EPROBE_DEFER;
/* Already binded to a net_device, so we skip. */
if (dev->netdev)
--
2.35.3