Commit ad6d94f2 authored by Wambui Karuga's avatar Wambui Karuga Committed by Simona Vetter
Browse files

drm/tegra: remove checks for debugfs functions return value 

Since 987d65d0 (drm: debugfs: make
drm_debugfs_create_files() never fail) there is no need to check the
return value of drm_debugfs_create_files(). Therefore, remove the
return checks and error handling of the drm_debugfs_create_files()
function from various debugfs init functions in drm/tegra and have
them return 0 directly.

v2: remove conversion of tegra_debugfs_init() to void to avoid build
breakage.

References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.html


Signed-off-by: default avatarWambui Karuga <wambui.karugax@gmail.com>
Acked-by: default avatarThierry Reding <treding@nvidia.com>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200310133121.27913-2-wambui.karugax@gmail.com
parent 82c0ef94

drivers/gpu/drm/tegra/dc.c

+1 −10
Original line number Diff line number Diff line
@@ -1496,7 +1496,6 @@ static int tegra_dc_late_register(struct drm_crtc *crtc) 
	struct drm_minor *minor = crtc->dev->primary;

	struct dentry *root;

	struct tegra_dc *dc = to_tegra_dc(crtc);

	int err;



#ifdef CONFIG_DEBUG_FS

	root = crtc->debugfs_entry;
@@ -1512,17 +1511,9 @@ static int tegra_dc_late_register(struct drm_crtc *crtc) 
	for (i = 0; i < count; i++)

		dc->debugfs_files[i].data = dc;



	err = drm_debugfs_create_files(dc->debugfs_files, count, root, minor);

	if (err < 0)

		goto free;

	drm_debugfs_create_files(dc->debugfs_files, count, root, minor);



	return 0;



free:

	kfree(dc->debugfs_files);

	dc->debugfs_files = NULL;



	return err;

}



static void tegra_dc_early_unregister(struct drm_crtc *crtc)

drivers/gpu/drm/tegra/drm.c

+4 −3
Original line number Diff line number Diff line
@@ -841,9 +841,10 @@ static struct drm_info_list tegra_debugfs_list[] = { 


static int tegra_debugfs_init(struct drm_minor *minor)

{

	return drm_debugfs_create_files(tegra_debugfs_list,

	drm_debugfs_create_files(tegra_debugfs_list,

				 ARRAY_SIZE(tegra_debugfs_list),

				 minor->debugfs_root, minor);

	return 0;

}

#endif

drivers/gpu/drm/tegra/dsi.c

+1 −10
Original line number Diff line number Diff line
@@ -234,7 +234,6 @@ static int tegra_dsi_late_register(struct drm_connector *connector) 
	struct drm_minor *minor = connector->dev->primary;

	struct dentry *root = connector->debugfs_entry;

	struct tegra_dsi *dsi = to_dsi(output);

	int err;



	dsi->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files),

				     GFP_KERNEL);
@@ -244,17 +243,9 @@ static int tegra_dsi_late_register(struct drm_connector *connector) 
	for (i = 0; i < count; i++)

		dsi->debugfs_files[i].data = dsi;



	err = drm_debugfs_create_files(dsi->debugfs_files, count, root, minor);

	if (err < 0)

		goto free;

	drm_debugfs_create_files(dsi->debugfs_files, count, root, minor);



	return 0;



free:

	kfree(dsi->debugfs_files);

	dsi->debugfs_files = NULL;



	return err;

}



static void tegra_dsi_early_unregister(struct drm_connector *connector)

drivers/gpu/drm/tegra/hdmi.c

+1 −10
Original line number Diff line number Diff line
@@ -1064,7 +1064,6 @@ static int tegra_hdmi_late_register(struct drm_connector *connector) 
	struct drm_minor *minor = connector->dev->primary;

	struct dentry *root = connector->debugfs_entry;

	struct tegra_hdmi *hdmi = to_hdmi(output);

	int err;



	hdmi->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files),

				      GFP_KERNEL);
@@ -1074,17 +1073,9 @@ static int tegra_hdmi_late_register(struct drm_connector *connector) 
	for (i = 0; i < count; i++)

		hdmi->debugfs_files[i].data = hdmi;



	err = drm_debugfs_create_files(hdmi->debugfs_files, count, root, minor);

	if (err < 0)

		goto free;

	drm_debugfs_create_files(hdmi->debugfs_files, count, root, minor);



	return 0;



free:

	kfree(hdmi->debugfs_files);

	hdmi->debugfs_files = NULL;



	return err;

}



static void tegra_hdmi_early_unregister(struct drm_connector *connector)

drivers/gpu/drm/tegra/sor.c

+1 −10
Original line number Diff line number Diff line
@@ -1687,7 +1687,6 @@ static int tegra_sor_late_register(struct drm_connector *connector) 
	struct drm_minor *minor = connector->dev->primary;

	struct dentry *root = connector->debugfs_entry;

	struct tegra_sor *sor = to_sor(output);

	int err;



	sor->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files),

				     GFP_KERNEL);
@@ -1697,17 +1696,9 @@ static int tegra_sor_late_register(struct drm_connector *connector) 
	for (i = 0; i < count; i++)

		sor->debugfs_files[i].data = sor;



	err = drm_debugfs_create_files(sor->debugfs_files, count, root, minor);

	if (err < 0)

		goto free;

	drm_debugfs_create_files(sor->debugfs_files, count, root, minor);



	return 0;



free:

	kfree(sor->debugfs_files);

	sor->debugfs_files = NULL;



	return err;

}



static void tegra_sor_early_unregister(struct drm_connector *connector)