linux-kernel - [PATCH v1] drivers: mediatek: fix parameter check in lvts_debugfs

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Date:   Thu, 13 Jul 2023 12:24:12 +0800
From:   Minjie Du <duminjie@...o.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Minjie Du <duminjie@...o.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        linux-pm@...r.kernel.org (open list:THERMAL),
        linux-kernel@...r.kernel.org (open list),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Mediatek SoC
        support),
        linux-mediatek@...ts.infradead.org (moderated list:ARM/Mediatek SoC
        support)
Cc:     opensource.kernel@...o.com
Subject: [PATCH v1] drivers: mediatek: fix parameter check in lvts_debugfs_init()

Make IS_ERR() judge the debugfs_create_dir() function return
in lvts_debugfs_init().

Signed-off-by: Minjie Du <duminjie@...o.com>
---
 drivers/thermal/mediatek/lvts_thermal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c
index b693fac2d..b46f351d1 100644
--- a/drivers/thermal/mediatek/lvts_thermal.c
+++ b/drivers/thermal/mediatek/lvts_thermal.c
@@ -190,7 +190,7 @@ static int lvts_debugfs_init(struct device *dev, struct lvts_domain *lvts_td)
 	int i;
 
 	lvts_td->dom_dentry = debugfs_create_dir(dev_name(dev), NULL);
-	if (!lvts_td->dom_dentry)
+	if (IS_ERR(lvts_td->dom_dentry))
 		return 0;
 
 	for (i = 0; i < lvts_td->num_lvts_ctrl; i++) {
-- 
2.39.0