linux-kernel - [PATCH] lvts_thermal.c: Fix error checking for debugfs_create

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Date:   Wed, 17 May 2023 21:03:26 +0500
From:   Osama Muhammad <osmtendev@...il.com>
To:     rafael@...nel.org, daniel.lezcano@...aro.org, amitk@...nel.org,
        rui.zhang@...el.com, matthias.bgg@...il.com,
        angelogioacchino.delregno@...labora.com, bchihi@...libre.com,
        wenst@...omium.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Osama Muhammad <osmtendev@...il.com>
Subject: [PATCH] lvts_thermal.c: Fix error checking for debugfs_create_dir

This patch fixes the error checking in lvts_thermal.c in
debugfs_create_dir. The correct way to check if an error occurred
is 'IS_ERR' inline function.

Signed-off-by: Osama Muhammad <osmtendev@...il.com>
---
 drivers/thermal/mediatek/lvts_thermal.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c
index d0a3f95b7884..61386be78fa0 100644
--- a/drivers/thermal/mediatek/lvts_thermal.c
+++ b/drivers/thermal/mediatek/lvts_thermal.c
@@ -188,7 +188,7 @@ 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++) {
@@ -197,7 +197,7 @@ static int lvts_debugfs_init(struct device *dev, struct lvts_domain *lvts_td)
 
 		sprintf(name, "controller%d", i);
 		dentry = debugfs_create_dir(name, lvts_td->dom_dentry);
-		if (!dentry)
+		if (IS_ERR(dentry))
 			continue;
 
 		regset = devm_kzalloc(dev, sizeof(*regset), GFP_KERNEL);
-- 
2.34.1