Re: [RESEND PATCH 2/2] thermal: qcom: tsens: simplify debugfs init function

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On 21/10/2022 20:19, Christian Marangi wrote:
Simplify debugfs init function.
- Add check for existing dev directory.
- Fix wrong version in dbg_version_show (with version 0.0.0, 0.1.0 was
   incorrectly reported)

Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
Reviewed-by: Thara Gopinath <thara.gopinath@xxxxxxxxxx>
---
  drivers/thermal/qcom/tsens.c | 14 +++++---------
  1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index cc2965b8d409..ff82626cecef 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -692,7 +692,7 @@ static int dbg_version_show(struct seq_file *s, void *data)
  			return ret;
  		seq_printf(s, "%d.%d.%d\n", maj_ver, min_ver, step_ver);
  	} else {
-		seq_puts(s, "0.1.0\n");
+		seq_printf(s, "0.%d.0\n", priv->feat->ver_major);
  	}
return 0;
@@ -704,21 +704,17 @@ DEFINE_SHOW_ATTRIBUTE(dbg_sensors);
  static void tsens_debug_init(struct platform_device *pdev)
  {
  	struct tsens_priv *priv = platform_get_drvdata(pdev);
-	struct dentry *root, *file;
- root = debugfs_lookup("tsens", NULL);
-	if (!root)
+	priv->debug_root = debugfs_lookup("tsens", NULL);
+	if (!priv->debug_root)
  		priv->debug_root = debugfs_create_dir("tsens", NULL);
-	else
-		priv->debug_root = root;
- file = debugfs_lookup("version", priv->debug_root);
-	if (!file)
+	if (!debugfs_lookup("version", priv->debug_root))
  		debugfs_create_file("version", 0444, priv->debug_root,
  				    pdev, &dbg_version_fops);
/* A directory for each instance of the TSENS IP */
-	priv->debug = debugfs_create_dir(dev_name(&pdev->dev), priv->debug_root);
+	priv->debug = debugfs_lookup(dev_name(&pdev->dev), priv->debug_root);

Why the directory creation is replaced by the lookup ?

  	debugfs_create_file("sensors", 0444, priv->debug, pdev, &dbg_sensors_fops);
  }
  #else


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