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From: Wambui Karuga <wambui.karugax@gmail.com>
To: daniel@ffwll.ch, airlied@linux.ie, bskeggs@redhat.com
Cc: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org
Subject: [PATCH 09/21] drm/nouveau: remove checks for return value of debugfs functions
Date: Thu, 27 Feb 2020 15:02:20 +0300	[thread overview]
Message-ID: <20200227120232.19413-10-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 ever check
for the the return value of debugfs_create_file() and
drm_debugfs_create_files(). Therefore, remove unnecessary checks and
error handling in nouveau_drm_debugfs_init.

These changes also enable nouveau_drm_debugfs_init() to be declared
as void.

Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
---
 drivers/gpu/drm/nouveau/nouveau_debugfs.c | 26 +++++++++--------------
 drivers/gpu/drm/nouveau/nouveau_debugfs.h |  5 ++---
 2 files changed, 12 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
index 7dfbbbc1beea..63cb5e432f8a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c
+++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
@@ -217,39 +217,33 @@ static const struct nouveau_debugfs_files {
 	{"pstate", &nouveau_pstate_fops},
 };
 
-int
+void
 nouveau_drm_debugfs_init(struct drm_minor *minor)
 {
 	struct nouveau_drm *drm = nouveau_drm(minor->dev);
 	struct dentry *dentry;
-	int i, ret;
+	int i;
 
 	for (i = 0; i < ARRAY_SIZE(nouveau_debugfs_files); i++) {
-		dentry = debugfs_create_file(nouveau_debugfs_files[i].name,
-					     S_IRUGO | S_IWUSR,
-					     minor->debugfs_root, minor->dev,
-					     nouveau_debugfs_files[i].fops);
-		if (!dentry)
-			return -ENOMEM;
+		debugfs_create_file(nouveau_debugfs_files[i].name,
+				    S_IRUGO | S_IWUSR,
+				    minor->debugfs_root, minor->dev,
+				    nouveau_debugfs_files[i].fops);
 	}
 
-	ret = drm_debugfs_create_files(nouveau_debugfs_list,
-				       NOUVEAU_DEBUGFS_ENTRIES,
-				       minor->debugfs_root, minor);
-	if (ret)
-		return ret;
+	drm_debugfs_create_files(nouveau_debugfs_list,
+				 NOUVEAU_DEBUGFS_ENTRIES,
+				 minor->debugfs_root, minor);
 
 	/* Set the size of the vbios since we know it, and it's confusing to
 	 * userspace if it wants to seek() but the file has a length of 0
 	 */
 	dentry = debugfs_lookup("vbios.rom", minor->debugfs_root);
 	if (!dentry)
-		return 0;
+		return;
 
 	d_inode(dentry)->i_size = drm->vbios.length;
 	dput(dentry);
-
-	return 0;
 }
 
 int
diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.h b/drivers/gpu/drm/nouveau/nouveau_debugfs.h
index 8909c010e8ea..ccb842d9da87 100644
--- a/drivers/gpu/drm/nouveau/nouveau_debugfs.h
+++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.h
@@ -18,14 +18,13 @@ nouveau_debugfs(struct drm_device *dev)
 	return nouveau_drm(dev)->debugfs;
 }
 
-extern int  nouveau_drm_debugfs_init(struct drm_minor *);
+extern void nouveau_drm_debugfs_init(struct drm_minor *);
 extern int  nouveau_debugfs_init(struct nouveau_drm *);
 extern void nouveau_debugfs_fini(struct nouveau_drm *);
 #else
-static inline int
+static inline void
 nouveau_drm_debugfs_init(struct drm_minor *minor)
 {
-       return 0;
 }
 
 static inline int
-- 
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 ` Wambui Karuga [this message]
2020-02-27 12:02 ` [PATCH 10/21] drm/tegra: remove checks for debugfs functions return value Wambui Karuga
2020-03-11 14:37   ` 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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