regulator: dbx500: no need to check return value of debugfs_create functions

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.

Signed-off-by: Greg Kroah-Hartman <[e-mail]>
Cc: Liam Girdwood <[e-mail]>
Cc: Mark Brown <[e-mail]>
Cc: [e-mail]
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/dbx500-prcmu.c

···
 
 static struct ux500_regulator_debug {
 	struct dentry *dir;
-	struct dentry *status_file;
-	struct dentry *power_state_cnt_file;
 	struct dbx500_regulator_info *regulator_array;
 	int num_regulators;
 	u8 *state_before_suspend;
···
 {
 	/* create directory */
 	rdebug.dir = debugfs_create_dir("ux500-regulator", NULL);
-	if (!rdebug.dir)
-		goto exit_no_debugfs;
 
 	/* create "status" file */
-	rdebug.status_file = debugfs_create_file("status",
-		S_IRUGO, rdebug.dir, &pdev->dev,
-		&ux500_regulator_status_fops);
-	if (!rdebug.status_file)
-		goto exit_destroy_dir;
+	debugfs_create_file("status", S_IRUGO, rdebug.dir, &pdev->dev,
+			    &ux500_regulator_status_fops);
 
 	/* create "power-state-count" file */
-	rdebug.power_state_cnt_file = debugfs_create_file("power-state-count",
-		S_IRUGO, rdebug.dir, &pdev->dev,
-		&ux500_regulator_power_state_cnt_fops);
-	if (!rdebug.power_state_cnt_file)
-		goto exit_destroy_status;
+	debugfs_create_file("power-state-count", S_IRUGO, rdebug.dir,
+			    &pdev->dev, &ux500_regulator_power_state_cnt_fops);
 
 	rdebug.regulator_array = regulator_info;
 	rdebug.num_regulators = num_regulators;
···
 exit_free:
 	kfree(rdebug.state_before_suspend);
 exit_destroy_power_state:
-	debugfs_remove(rdebug.power_state_cnt_file);
-exit_destroy_status:
-	debugfs_remove(rdebug.status_file);
-exit_destroy_dir:
-	debugfs_remove(rdebug.dir);
+	debugfs_remove_recursive(rdebug.dir);
 exit_no_debugfs:
 	dev_err(&pdev->dev, "failed to create debugfs entries.\n");
 	return -ENOMEM;