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From: Wambui Karuga <wambui.karugax@gmail.com>
To: daniel@ffwll.ch, airlied@linux.ie,
	Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org, gregkh@linuxfoundation.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: [PATCH 10/21] drm/tegra: remove checks for debugfs functions return value
Date: Thu, 27 Feb 2020 15:02:21 +0300	[thread overview]
Message-ID: <20200227120232.19413-11-wambui.karugax@gmail.com> (raw)
In-Reply-To: <20200227120232.19413-1-wambui.karugax@gmail.com>

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.

This change also includes removing the use of drm_debugfs_create_files
as a return value in tegra_debugfs_init() and have the function declared
as void.

Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
---
 drivers/gpu/drm/tegra/dc.c   | 11 +----------
 drivers/gpu/drm/tegra/drm.c  |  8 ++++----
 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(+), 44 deletions(-)

diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 7c70fd31a4c2..e70d58b21964 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 bd268028fb3d..d4f51b5c7ee5 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -839,11 +839,11 @@ static struct drm_info_list tegra_debugfs_list[] = {
 	{ "iova", tegra_debugfs_iova, 0 },
 };
 
-static int tegra_debugfs_init(struct drm_minor *minor)
+static void 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);
 }
 #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 6f117628f257..d7799d13d8ad 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)
-- 
2.25.0

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  parent reply	other threads:[~2020-02-27 13:00 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-27 12:02 [PATCH 00/21] drm: subsytem-wide debugfs functions refactor Wambui Karuga
2020-02-27 12:02 ` [PATCH 01/21] drm/debugfs: remove checks for return value of drm_debugfs functions Wambui Karuga
2020-02-27 12:02 ` [PATCH 02/21] drm: convert the drm_driver.debugfs_init() hook to return void Wambui Karuga
2020-02-27 12:23   ` Greg KH
2020-02-27 12:29     ` Wambui Karuga
2020-02-27 12:34       ` Greg KH
2020-02-27 12:02 ` [PATCH 03/21] drm: convert drm_debugfs functions " Wambui Karuga
2020-02-27 12:02 ` [PATCH 04/21] drm/vram-helper: make drm_vram_mm_debugfs_init() " Wambui Karuga
2020-02-28  8:03   ` Thomas Zimmermann
2020-02-27 12:02 ` [PATCH 05/21] drm/vc4: remove check of return value of drm_debugfs functions Wambui Karuga
2020-02-27 12:02 ` [PATCH 06/21] drm/arc: make arcpgu_debugfs_init return void Wambui Karuga
2020-02-27 14:43   ` Alexey Brodkin
2020-02-27 12:02 ` [PATCH 07/21] drm/arm: make hdlcd_debugfs_init() " Wambui Karuga
2020-02-27 14:53   ` Liviu Dudau
2020-02-27 12:02 ` [PATCH 08/21] drm/etnaviv: remove check for return value of drm_debugfs function Wambui Karuga
2020-02-27 13:36   ` Lucas Stach
2020-02-27 12:02 ` [PATCH 09/21] drm/nouveau: remove checks for return value of debugfs functions Wambui Karuga
2020-02-27 12:02 ` Wambui Karuga [this message]
2020-03-11 14:37   ` [PATCH 10/21] drm/tegra: remove checks for debugfs functions return value Thierry Reding
2020-03-11 14:54     ` Wambui Karuga
2020-03-11 23:24       ` Thierry Reding
2020-03-16  8:33         ` Daniel Vetter
2020-02-27 12:02 ` [PATCH 11/21] drm/v3d: make v3d_debugfs_init return void Wambui Karuga
2020-02-27 12:02 ` [PATCH 12/21] drm/msm: remove checks for return value of drm_debugfs functions Wambui Karuga
2020-02-27 14:45   ` Daniel Vetter
2020-02-28  7:24   ` kbuild test robot
2020-02-27 12:02 ` [PATCH 13/21] drm/omapdrm: " Wambui Karuga
2020-02-27 12:02 ` [PATCH 14/21] drm/pl111: make pl111_debugfs_init return void Wambui Karuga
2020-02-27 12:02 ` [PATCH 15/21] drm/sti: remove use drm_debugfs functions as return value Wambui Karuga
2020-02-27 14:51   ` Daniel Vetter
2020-02-27 12:02 ` [PATCH 16/21] drm/i915: make *_debugfs_register() functions return void Wambui Karuga
2020-02-27 13:08   ` Jani Nikula
2020-02-27 12:02 ` [PATCH 17/21] drm/tilcdc: remove check for return value of debugfs functions Wambui Karuga
2020-02-27 12:12   ` Jyri Sarha
2020-02-27 12:23     ` Wambui Karuga
2020-02-27 12:02 ` [PATCH 18/21] drm/virtio: make virtio_gpu_debugfs() return void Wambui Karuga
2020-02-27 12:02 ` [PATCH 19/21] drm/mipi_dbi: make midi_dbi_debugfs_init() " Wambui Karuga
2020-02-27 12:02 ` [PATCH 20/21] drm/qxl: have debugfs functions " Wambui Karuga
2020-02-27 12:02 ` [PATCH 21/21] drm/arm: have malidp_debufs_init() " Wambui Karuga
2020-02-27 14:53   ` Liviu Dudau

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