linux-kernel - [PATCH AUTOSEL 5.10 08/21] regulator: Fix error checking for debugfs_create

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Message-Id: <20230531134415.3384458-8-sashal@kernel.org>
Date:   Wed, 31 May 2023 09:44:01 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Osama Muhammad <osmtendev@...il.com>,
        Sasha Levin <sashal@...nel.org>, lgirdwood@...il.com,
        broonie@...nel.org
Subject: [PATCH AUTOSEL 5.10 08/21] regulator: Fix error checking for debugfs_create_dir

From: Osama Muhammad <osmtendev@...il.com>

[ Upstream commit 2bf1c45be3b8f3a3f898d0756c1282f09719debd ]

This patch fixes the error checking in core.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
Suggested-by: Ivan Orlov <ivan.orlov0322@...il.com
Link: https://lore.kernel.org/r/20230515172938.13338-1-osmtendev@gmail.com
Signed-off-by: Mark Brown <broonie@...nel.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/regulator/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 47a04c5f7a9b8..f5ab74683b58a 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -5032,7 +5032,7 @@ static void rdev_init_debugfs(struct regulator_dev *rdev)
 	}
 
 	rdev->debugfs = debugfs_create_dir(rname, debugfs_root);
-	if (!rdev->debugfs) {
+	if (IS_ERR(rdev->debugfs)) {
 		rdev_warn(rdev, "Failed to create debugfs directory\n");
 		return;
 	}
@@ -5937,7 +5937,7 @@ static int __init regulator_init(void)
 	ret = class_register(&regulator_class);
 
 	debugfs_root = debugfs_create_dir("regulator", NULL);
-	if (!debugfs_root)
+	if (IS_ERR(debugfs_root))
 		pr_warn("regulator: Failed to create debugfs directory\n");
 
 #ifdef CONFIG_DEBUG_FS
-- 
2.39.2