From a7fd5cb56dd6548599bdaa402c9a699f5a384750 Mon Sep 17 00:00:00 2001
From: Wambui Karuga <wambui.karugax@gmail.com>
Date: Tue, 10 Mar 2020 16:31:05 +0300
Subject: drm/tegra: remove checks for debugfs functions return value
Git-commit: ad6d94f24f2024178bf71d126e93813dddde5ee4
Patch-mainline: v5.8-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Since 987d65d01356 (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: Wambui Karuga <wambui.karugax@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200310133121.27913-2-wambui.karugax@gmail.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/tegra/dc.c | 11 +----------
drivers/gpu/drm/tegra/drm.c | 7 ++++---
drivers/gpu/drm/tegra/dsi.c | 11 +----------
drivers/gpu/drm/tegra/hdmi.c | 11 +----------
drivers/gpu/drm/tegra/sor.c | 11 +----------
5 files changed, 8 insertions(+), 43 deletions(-)
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 1a7b08f35776..83f31c6e891c 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -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)
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 583cd6e0ae27..6151a1044491 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -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,
- ARRAY_SIZE(tegra_debugfs_list),
- minor->debugfs_root, minor);
+ drm_debugfs_create_files(tegra_debugfs_list,
+ ARRAY_SIZE(tegra_debugfs_list),
+ minor->debugfs_root, minor);
+ return 0;
}
#endif
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index 88b9d64c77bf..30626fcf61eb 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -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)
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index 38252c0f068d..4ee993b1634d 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -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)
diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index 81226a4953c1..47c1d133069a 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -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)
--
2.28.0