From eefa97a7a0019b9c015d963d3b9f2e3e2716e698 Mon Sep 17 00:00:00 2001
From: Zhengchao Shao <shaozhengchao@huawei.com>
Date: Wed, 26 Oct 2022 09:46:42 +0800
Subject: [PATCH] netdevsim: remove dir in nsim_dev_debugfs_init() when
creating ports dir failed
[ Upstream commit a6aa8d0ce2cfba57ac0f23293fcb3be0b9f53fba ]
Remove dir in nsim_dev_debugfs_init() when creating ports dir failed.
Otherwise, the netdevsim device will not be created next time. Kernel
reports an error: debugfs: Directory 'netdevsim1' with parent 'netdevsim'
already present!
Fixes: ab1d0cc004d7 ("netdevsim: change debugfs tree topology")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/netdevsim/dev.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c
index 54313bd577973..94490dfae6568 100644
--- a/drivers/net/netdevsim/dev.c
+++ b/drivers/net/netdevsim/dev.c
@@ -229,8 +229,10 @@ static int nsim_dev_debugfs_init(struct nsim_dev *nsim_dev)
if (IS_ERR(nsim_dev->ddir))
return PTR_ERR(nsim_dev->ddir);
nsim_dev->ports_ddir = debugfs_create_dir("ports", nsim_dev->ddir);
- if (IS_ERR(nsim_dev->ports_ddir))
- return PTR_ERR(nsim_dev->ports_ddir);
+ if (IS_ERR(nsim_dev->ports_ddir)) {
+ err = PTR_ERR(nsim_dev->ports_ddir);
+ goto err_ddir;
+ }
debugfs_create_bool("fw_update_status", 0600, nsim_dev->ddir,
&nsim_dev->fw_update_status);
debugfs_create_u32("fw_update_overwrite_mask", 0600, nsim_dev->ddir,
@@ -267,7 +269,7 @@ static int nsim_dev_debugfs_init(struct nsim_dev *nsim_dev)
nsim_dev->nodes_ddir = debugfs_create_dir("rate_nodes", nsim_dev->ddir);
if (IS_ERR(nsim_dev->nodes_ddir)) {
err = PTR_ERR(nsim_dev->nodes_ddir);
- goto err_out;
+ goto err_ports_ddir;
}
debugfs_create_bool("fail_trap_drop_counter_get", 0600,
nsim_dev->ddir,
@@ -275,8 +277,9 @@ static int nsim_dev_debugfs_init(struct nsim_dev *nsim_dev)
nsim_udp_tunnels_debugfs_create(nsim_dev);
return 0;
-err_out:
+err_ports_ddir:
debugfs_remove_recursive(nsim_dev->ports_ddir);
+err_ddir:
debugfs_remove_recursive(nsim_dev->ddir);
return err;
}
--
2.30.2