[PATCH v3] hwmon:(pmbus/adm1266): Drop unnecessary error check for debugfs_create_dir

From: Osama Muhammad <osmtendev@gmail.com>
To: linux@roeck-us.net, jdelvare@suse.com
Cc: linux-hwmon@vger.kernel.org, Osama Muhammad <osmtendev@gmail.com>
Subject: [PATCH v3] hwmon:(pmbus/adm1266): Drop unnecessary error check for debugfs_create_dir
Date: Fri, 26 May 2023 21:39:38 +0500	[thread overview]
Message-ID: <20230526163938.9903-1-osmtendev@gmail.com> (raw)

This patch removes the error checking for debugfs_create_dir
in adm1266.c. This is because the debugfs_create_dir() does not
return NULL but an ERR_PTR after an error.
The DebugFS kernel API is developed in a way that the
caller can safely ignore the errors that occur during
the creation of DebugFS nodes.The debugfs Api handles
it gracefully. The check is unnecessary.

Link to the comment above debugfs_create_dir:
https://elixir.bootlin.com/linux/latest/source/fs/debugfs/inode.c#L565

Signed-off-by: Osama Muhammad <osmtendev@gmail.com>

---
changes since v2
	-Added more descriptive commit message.

changes since v1
	-In v1 the IS_ERR was used for error checking which is dropped now.
---
 drivers/hwmon/pmbus/adm1266.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/hwmon/pmbus/adm1266.c b/drivers/hwmon/pmbus/adm1266.c
index 1ac2b2f4c570..184d75269d2b 100644
--- a/drivers/hwmon/pmbus/adm1266.c
+++ b/drivers/hwmon/pmbus/adm1266.c
@@ -340,8 +340,6 @@ static void adm1266_init_debugfs(struct adm1266_data *data)
 		return;
 
 	data->debugfs_dir = debugfs_create_dir(data->client->name, root);
-	if (!data->debugfs_dir)
-		return;
 
 	debugfs_create_devm_seqfile(&data->client->dev, "sequencer_state", data->debugfs_dir,
 				    adm1266_state_read);
-- 
2.34.1

