linux-kernel - [PATCH v2 13/17] drm/omap: remove checks for return value of drm

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Message-Id: <20200310133121.27913-14-wambui.karugax@gmail.com>
Date:   Tue, 10 Mar 2020 16:31:17 +0300
From:   Wambui Karuga <wambui.karugax@...il.com>
To:     airlied@...ux.ie, daniel@...ll.ch,
        Tomi Valkeinen <tomi.valkeinen@...com>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        gregkh@...uxfoundation.org
Subject: [PATCH v2 13/17] drm/omap: remove checks for return value of drm_debugfs functions

Since 987d65d01356 (drm: debugfs: make
drm_debugfs_create_files() never fail), there is no need to ever check
the return value for drm_debugfs_create_files(). Therefore remove the
checks for the return value and subsequent error handling in
omap_debugfs_init().

These changes also enables the changing of omap_debugfs_init() to return
0 directly.

v2: convert omap_debugfs_init() to return 0 instead of void to avoid
introduction of build issues and enable individual driver compilation.

References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.html
Signed-off-by: Wambui Karuga <wambui.karugax@...il.com>
---
 drivers/gpu/drm/omapdrm/omap_debugfs.c | 27 +++++++-------------------
 1 file changed, 7 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/omap_debugfs.c b/drivers/gpu/drm/omapdrm/omap_debugfs.c
index 34dfb33145b4..ed63dcced79a 100644
--- a/drivers/gpu/drm/omapdrm/omap_debugfs.c
+++ b/drivers/gpu/drm/omapdrm/omap_debugfs.c
@@ -82,29 +82,16 @@ static struct drm_info_list omap_dmm_debugfs_list[] = {
 
 int omap_debugfs_init(struct drm_minor *minor)
 {
-	struct drm_device *dev = minor->dev;
-	int ret;
-
-	ret = drm_debugfs_create_files(omap_debugfs_list,
-			ARRAY_SIZE(omap_debugfs_list),
-			minor->debugfs_root, minor);
-
-	if (ret) {
-		dev_err(dev->dev, "could not install omap_debugfs_list\n");
-		return ret;
-	}
+	drm_debugfs_create_files(omap_debugfs_list,
+				 ARRAY_SIZE(omap_debugfs_list),
+				 minor->debugfs_root, minor);
 
 	if (dmm_is_available())
-		ret = drm_debugfs_create_files(omap_dmm_debugfs_list,
-				ARRAY_SIZE(omap_dmm_debugfs_list),
-				minor->debugfs_root, minor);
+		drm_debugfs_create_files(omap_dmm_debugfs_list,
+					 ARRAY_SIZE(omap_dmm_debugfs_list),
+					 minor->debugfs_root, minor);
 
-	if (ret) {
-		dev_err(dev->dev, "could not install omap_dmm_debugfs_list\n");
-		return ret;
-	}
-
-	return ret;
+	return 0;
 }
 
 #endif
-- 
2.25.1