This is a note to let you know that I've just added the patch titled
regulator: Fix error checking for debugfs_create_dir
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
regulator-fix-error-checking-for-debugfs_create_dir.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 3d042d1f0c924de70125917de263e9e40988c759
Author: Osama Muhammad <osmtendev@xxxxxxxxx>
Date: Mon May 15 22:29:38 2023 +0500
regulator: Fix error checking for debugfs_create_dir
[ 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@xxxxxxxxx
Suggested-by: Ivan Orlov <ivan.orlov0322@xxxxxxxxx
Link: https://lore.kernel.org/r/20230515172938.13338-1-osmtendev@xxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 11656b3836748..14f9977f1ec08 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -4181,7 +4181,7 @@ 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;
}
@@ -4843,7 +4843,7 @@ static int __init regulator_init(void)
ret = class_register(®ulator_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");
debugfs_create_file("supply_map", 0444, debugfs_root, NULL,
