arm: omap2: 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.

Cc: Kevin Hilman <khilman@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-omap@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

arch/arm/mach-omap2/pm-debug.c

@@ -193,9 +193,8 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *dir)
 		return 0;
 
 	d = debugfs_create_dir(pwrdm->name, (struct dentry *)dir);
-	if (d)
-		(void) debugfs_create_file("suspend", S_IRUGO|S_IWUSR, d,
-			(void *)pwrdm, &pwrdm_suspend_fops);
+	debugfs_create_file("suspend", S_IRUGO|S_IWUSR, d, pwrdm,
+			    &pwrdm_suspend_fops);
 
 	return 0;
 }
@@ -233,16 +232,14 @@ static int __init pm_dbg_init(void)
 		return 0;
 
 	d = debugfs_create_dir("pm_debug", NULL);
-	if (!d)
-		return -EINVAL;
 
-	(void) debugfs_create_file("count", 0444, d, NULL, &pm_dbg_counters_fops);
-	(void) debugfs_create_file("time", 0444, d, NULL, &pm_dbg_timers_fops);
+	debugfs_create_file("count", 0444, d, NULL, &pm_dbg_counters_fops);
+	debugfs_create_file("time", 0444, d, NULL, &pm_dbg_timers_fops);
 
 	pwrdm_for_each(pwrdms_setup, (void *)d);
 
-	(void) debugfs_create_file("enable_off_mode", S_IRUGO | S_IWUSR, d,
-				   &enable_off_mode, &pm_dbg_option_fops);
+	debugfs_create_file("enable_off_mode", S_IRUGO | S_IWUSR, d,
+			    &enable_off_mode, &pm_dbg_option_fops);
 	pm_dbg_init_done = 1;
 
 	return 0;