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

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Date:   Mon, 15 May 2023 22:29:38 +0500
From:   Osama Muhammad <osmtendev@...il.com>
To:     lgirdwood@...il.com, broonie@...nel.org
Cc:     linux-kernel@...r.kernel.org, Osama Muhammad <osmtendev@...il.com>,
        Ivan Orlov <ivan.orlov0322@...il.com>
Subject: [PATCH] regulator:core.c: Fix error checking for debugfs_create_dir

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>
---
 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 dc741ac156c3..698ab7f5004b 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -5256,7 +5256,7 @@ 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;
 	}
@@ -6178,7 +6178,7 @@ 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
-- 
2.34.1