sti: 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: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613114618.GD13119@kroah.com

diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
index 730ab226ceb44229c514c0a0301587e0a4f27695..bb6ae6dd66c93b6b4b8b31d2140f87bcc7944c89 100644 (file)
--- a/drivers/gpu/drm/sti/sti_drv.c
+++ b/drivers/gpu/drm/sti/sti_drv.c
@@ -96,7 +96,6 @@ static struct drm_info_list sti_drm_dbg_list[] = {
 
 static int sti_drm_dbg_init(struct drm_minor *minor)
 {
-       struct dentry *dentry;
        int ret;
 
        ret = drm_debugfs_create_files(sti_drm_dbg_list,
@@ -105,13 +104,8 @@ static int sti_drm_dbg_init(struct drm_minor *minor)
        if (ret)
                goto err;
 
-       dentry = debugfs_create_file("fps_show", S_IRUGO | S_IWUSR,
-                                    minor->debugfs_root, minor->dev,
-                                    &sti_drm_fps_fops);
-       if (!dentry) {
-               ret = -ENOMEM;
-               goto err;
-       }
+       debugfs_create_file("fps_show", S_IRUGO | S_IWUSR, minor->debugfs_root,
+                           minor->dev, &sti_drm_fps_fops);
 
        DRM_INFO("%s: debugfs installed\n", DRIVER_NAME);
        return 0;