linux-kernel - [PATCH v2] drivers: wireless: ath5k: fix parameter check in ath5k_debug_init

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Message-Id: <20230713033647.2109-1-duminjie@vivo.com>
Date:   Thu, 13 Jul 2023 11:36:47 +0800
From:   Minjie Du <duminjie@...o.com>
To:     Jiri Slaby <jirislaby@...nel.org>,
        Nick Kossifidis <mickflemm@...il.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Kalle Valo <kvalo@...nel.org>,
        linux-wireless@...r.kernel.org (open list:ATHEROS ATH5K WIRELESS DRIVER),
        linux-kernel@...r.kernel.org (open list)
Cc:     opensource.kernel@...o.com, Minjie Du <duminjie@...o.com>
Subject: [PATCH v2] drivers: wireless: ath5k: fix parameter check in ath5k_debug_init_device()

Make IS_ERR_OR_NULL() judge the debugfs_create_dir() function return
in ath5k_debug_init_device().

Signed-off-by: Minjie Du <duminjie@...o.com>
Acked-by: Luis Chamberlain <mcgrof@...nel.org>
---
v1-v2:
use IS_ERR_OR_NULL() instead of IS_ERR()
---
 drivers/net/wireless/ath/ath5k/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c
index 4b41160e5..7c8823759 100644
--- a/drivers/net/wireless/ath/ath5k/debug.c
+++ b/drivers/net/wireless/ath/ath5k/debug.c
@@ -982,7 +982,7 @@ ath5k_debug_init_device(struct ath5k_hw *ah)
 	ah->debug.level = ath5k_debug;
 
 	phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);
-	if (!phydir)
+	if (IS_ERR_OR_NULL(phydir))
 		return;
 
 	debugfs_create_file("debug", 0600, phydir, ah, &fops_debug);
-- 
2.39.0