netdev - [PATCH net v1] bna:Fix error checking for debugfs_create

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Date: Thu, 13 Jul 2023 13:38:08 +0800
From: Wang Ming <machel@...o.com>
To: Rasesh Mody <rmody@...vell.com>,
	Sudarsana Kalluru <skalluru@...vell.com>,
	GR-Linux-NIC-Dev@...vell.com,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Krishna Gudipati <kgudipat@...cade.com>,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: opensource.kernel@...o.com,
	Wang Ming <machel@...o.com>
Subject: [PATCH net v1] bna:Fix error checking for debugfs_create_dir()

The debugfs_create_dir() function returns error pointers,
it never returns NULL. Most incorrect error checks were fixed,
but the one in bnad_debugfs_init() was forgotten.

Fix the remaining error check.

Signed-off-by: Wang Ming <machel@...o.com>

Fixes: 7afc5dbde091 ("bna: Add debugfs interface.")
---
 drivers/net/ethernet/brocade/bna/bnad_debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/brocade/bna/bnad_debugfs.c b/drivers/net/ethernet/brocade/bna/bnad_debugfs.c
index 04ad0f2b9677..678a3668a041 100644
--- a/drivers/net/ethernet/brocade/bna/bnad_debugfs.c
+++ b/drivers/net/ethernet/brocade/bna/bnad_debugfs.c
@@ -512,7 +512,7 @@ bnad_debugfs_init(struct bnad *bnad)
 	if (!bnad->port_debugfs_root) {
 		bnad->port_debugfs_root =
 			debugfs_create_dir(name, bna_debugfs_root);
-		if (!bnad->port_debugfs_root) {
+		if (IS_ERR(bnad->port_debugfs_root)) {
 			netdev_warn(bnad->netdev,
 				    "debugfs root dir creation failed\n");
 			return;
-- 
2.25.1