diff mbox series

[4/8] platform: x86: ideapad-laptop: no need to check return value of debugfs_create functions

Message ID 20190612121258.19535-4-gregkh@linuxfoundation.org (mailing list archive)
State Accepted, archived
Delegated to: Andy Shevchenko
Headers show
Series [1/8] platform: x86: acer-wmi: no need to check return value of debugfs_create functions | expand

Commit Message

Greg Kroah-Hartman June 12, 2019, 12:12 p.m. UTC 
When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Ike Panhc <ike.pan@canonical.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: platform-driver-x86@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/platform/x86/ideapad-laptop.c | 36 ++++++---------------------
 1 file changed, 7 insertions(+), 29 deletions(-)
diff mbox series

Patch

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 5fb9bfdf1019..7598cd46cf60 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -316,34 +316,15 @@  static int debugfs_cfg_show(struct seq_file *s, void *data)
 }
 DEFINE_SHOW_ATTRIBUTE(debugfs_cfg);
 
-static int ideapad_debugfs_init(struct ideapad_private *priv)
+static void ideapad_debugfs_init(struct ideapad_private *priv)
 {
-	struct dentry *node;
+	struct dentry *dir;
 
-	priv->debug = debugfs_create_dir("ideapad", NULL);
-	if (priv->debug == NULL) {
-		pr_err("failed to create debugfs directory");
-		goto errout;
-	}
-
-	node = debugfs_create_file("cfg", S_IRUGO, priv->debug, priv,
-				   &debugfs_cfg_fops);
-	if (!node) {
-		pr_err("failed to create cfg in debugfs");
-		goto errout;
-	}
-
-	node = debugfs_create_file("status", S_IRUGO, priv->debug, priv,
-				   &debugfs_status_fops);
-	if (!node) {
-		pr_err("failed to create status in debugfs");
-		goto errout;
-	}
-
-	return 0;
+	dir = debugfs_create_dir("ideapad", NULL);
+	priv->debug = dir;
 
-errout:
-	return -ENOMEM;
+	debugfs_create_file("cfg", S_IRUGO, dir, priv, &debugfs_cfg_fops);
+	debugfs_create_file("status", S_IRUGO, dir, priv, &debugfs_status_fops);
 }
 
 static void ideapad_debugfs_exit(struct ideapad_private *priv)
@@ -1012,9 +993,7 @@  static int ideapad_acpi_add(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	ret = ideapad_debugfs_init(priv);
-	if (ret)
-		goto debugfs_failed;
+	ideapad_debugfs_init(priv);
 
 	ret = ideapad_input_init(priv);
 	if (ret)
@@ -1071,7 +1050,6 @@  static int ideapad_acpi_add(struct platform_device *pdev)
 	ideapad_input_exit(priv);
 input_failed:
 	ideapad_debugfs_exit(priv);
-debugfs_failed:
 	ideapad_sysfs_exit(priv);
 	return ret;
 }