power: avs: smartreflex: 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.

And even when not checking the return value, no need to cast away the
call to (void), as these functions were never a "must check" type of a
function, so remove that odd cast.

Cc: Kevin Hilman <khilman@kernel.org>
Cc: Nishanth Menon <nm@ti.com>
Cc: linux-pm@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/power/avs/smartreflex.c b/drivers/power/avs/smartreflex.c
index c96c01e097407da55c3a7981dfbefe1462c85366..4684e7df833a81e9ac6f325719a6b9c4a326db72 100644 (file)
--- a/drivers/power/avs/smartreflex.c
+++ b/drivers/power/avs/smartreflex.c
@@ -899,38 +899,19 @@ static int omap_sr_probe(struct platform_device *pdev)
        }
 
        dev_info(&pdev->dev, "%s: SmartReflex driver initialized\n", __func__);
-       if (!sr_dbg_dir) {
+       if (!sr_dbg_dir)
                sr_dbg_dir = debugfs_create_dir("smartreflex", NULL);
-               if (IS_ERR_OR_NULL(sr_dbg_dir)) {
-                       ret = PTR_ERR(sr_dbg_dir);
-                       pr_err("%s:sr debugfs dir creation failed(%d)\n",
-                              __func__, ret);
-                       goto err_list_del;
-               }
-       }
 
        sr_info->dbg_dir = debugfs_create_dir(sr_info->name, sr_dbg_dir);
-       if (IS_ERR_OR_NULL(sr_info->dbg_dir)) {
-               dev_err(&pdev->dev, "%s: Unable to create debugfs directory\n",
-                       __func__);
-               ret = PTR_ERR(sr_info->dbg_dir);
-               goto err_debugfs;
-       }
 
-       (void) debugfs_create_file("autocomp", S_IRUGO | S_IWUSR,
-                       sr_info->dbg_dir, (void *)sr_info, &pm_sr_fops);
-       (void) debugfs_create_x32("errweight", S_IRUGO, sr_info->dbg_dir,
-                       &sr_info->err_weight);
-       (void) debugfs_create_x32("errmaxlimit", S_IRUGO, sr_info->dbg_dir,
-                       &sr_info->err_maxlimit);
+       debugfs_create_file("autocomp", S_IRUGO | S_IWUSR, sr_info->dbg_dir,
+                           (void *)sr_info, &pm_sr_fops);
+       debugfs_create_x32("errweight", S_IRUGO, sr_info->dbg_dir,
+                          &sr_info->err_weight);
+       debugfs_create_x32("errmaxlimit", S_IRUGO, sr_info->dbg_dir,
+                          &sr_info->err_maxlimit);
 
        nvalue_dir = debugfs_create_dir("nvalue", sr_info->dbg_dir);
-       if (IS_ERR_OR_NULL(nvalue_dir)) {
-               dev_err(&pdev->dev, "%s: Unable to create debugfs directory for n-values\n",
-                       __func__);
-               ret = PTR_ERR(nvalue_dir);
-               goto err_debugfs;
-       }
 
        if (sr_info->nvalue_count == 0 || !sr_info->nvalue_table) {
                dev_warn(&pdev->dev, "%s: %s: No Voltage table for the corresponding vdd. Cannot create debugfs entries for n-values\n",
@@ -945,12 +926,12 @@ static int omap_sr_probe(struct platform_device *pdev)
 
                snprintf(name, sizeof(name), "volt_%lu",
                                sr_info->nvalue_table[i].volt_nominal);
-               (void) debugfs_create_x32(name, S_IRUGO | S_IWUSR, nvalue_dir,
-                               &(sr_info->nvalue_table[i].nvalue));
+               debugfs_create_x32(name, S_IRUGO | S_IWUSR, nvalue_dir,
+                                  &(sr_info->nvalue_table[i].nvalue));
                snprintf(name, sizeof(name), "errminlimit_%lu",
                         sr_info->nvalue_table[i].volt_nominal);
-               (void) debugfs_create_x32(name, S_IRUGO | S_IWUSR, nvalue_dir,
-                               &(sr_info->nvalue_table[i].errminlimit));
+               debugfs_create_x32(name, S_IRUGO | S_IWUSR, nvalue_dir,
+                                  &(sr_info->nvalue_table[i].errminlimit));
 
        }