omapdrm: 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: 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

diff --git a/drivers/gpu/drm/omapdrm/dss/dss.c b/drivers/gpu/drm/omapdrm/dss/dss.c
index 5711b7a720e6e2484f45ae0beb0ad050945b5534..e226324adb697874631cd23f95cff68a3b7d0b39 100644 (file)
--- 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;
 }