From e26ae7c0432101a924cf745b07470c8592de64cb Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 13 Jun 2019 13:57:49 +0200
Subject: omapdrm: no need to check return value of debugfs_create functions
Git-commit: e26ae7c0432101a924cf745b07470c8592de64cb
Patch-mainline: v5.4-rc1
References: bsc#1152472

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: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sebastian Reichel <sebastian.reichel@collabora.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: zhong jiang <zhongjiang@huawei.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613115749.GC26335@kroah.com
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190704023557.4551-1-huangfq.daxian@gmail.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/gpu/drm/omapdrm/dss/dss.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/dss/dss.c b/drivers/gpu/drm/omapdrm/dss/dss.c
index 5711b7a720e6..e226324adb69 100644
--- a/drivers/gpu/drm/omapdrm/dss/dss.c
+++ b/drivers/gpu/drm/omapdrm/dss/dss.c
@@ -923,7 +923,6 @@ dss_debugfs_create_file(struct dss_device *dss, const char *name,
 			void *data)
 {
 	struct dss_debugfs_entry *entry;
-	struct dentry *d;
 
 	entry = kzalloc(sizeof(*entry), GFP_KERNEL);
 	if (!entry)
@@ -931,15 +930,9 @@ dss_debugfs_create_file(struct dss_device *dss, const char *name,
 
 	entry->show_fn = show_fn;
 	entry->data = data;
+	entry->dentry = debugfs_create_file(name, 0444, dss->debugfs.root,
+					    entry, &dss_debug_fops);
 
-	d = debugfs_create_file(name, 0444, dss->debugfs.root, entry,
-				&dss_debug_fops);
-	if (IS_ERR(d)) {
-		kfree(entry);
-		return ERR_CAST(d);
-	}
-
-	entry->dentry = d;
 	return entry;
 }
 
-- 
2.28.0