Since commit 987d65d01356 (drm: debugfs: make drm_debugfs_create_files() never fail), drm_debugfs_create_files never fails and only returns 0. Therefore, the unnecessary checks for its return value and error handling in various debugfs_init() functions in drm/msm and have the functions return 0 directly.
v2: have debug functions return 0 instead of void to avoid build breakage and ensure standalone compilation.
References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.html Signed-off-by: Wambui Karuga wambui.karugax@gmail.com --- drivers/gpu/drm/msm/adreno/a5xx_debugfs.c | 12 +++--------- drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 14 +++----------- drivers/gpu/drm/msm/msm_debugfs.c | 13 ++++--------- 3 files changed, 10 insertions(+), 29 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_debugfs.c b/drivers/gpu/drm/msm/adreno/a5xx_debugfs.c index 075ecce4b5e0..011ab6353dbb 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_debugfs.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_debugfs.c @@ -151,21 +151,15 @@ DEFINE_SIMPLE_ATTRIBUTE(reset_fops, NULL, reset_set, "%llx\n"); int a5xx_debugfs_init(struct msm_gpu *gpu, struct drm_minor *minor) { struct drm_device *dev; - int ret;
if (!minor) return 0;
dev = minor->dev;
- ret = drm_debugfs_create_files(a5xx_debugfs_list, - ARRAY_SIZE(a5xx_debugfs_list), - minor->debugfs_root, minor); - - if (ret) { - DRM_DEV_ERROR(dev->dev, "could not install a5xx_debugfs_list\n"); - return ret; - } + drm_debugfs_create_files(a5xx_debugfs_list, + ARRAY_SIZE(a5xx_debugfs_list), + minor->debugfs_root, minor);
debugfs_create_file("reset", S_IWUGO, minor->debugfs_root, dev, &reset_fops); diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c index 6650f478b226..41b461128bbc 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c @@ -259,17 +259,9 @@ static struct drm_info_list mdp5_debugfs_list[] = {
static int mdp5_kms_debugfs_init(struct msm_kms *kms, struct drm_minor *minor) { - struct drm_device *dev = minor->dev; - int ret; - - ret = drm_debugfs_create_files(mdp5_debugfs_list, - ARRAY_SIZE(mdp5_debugfs_list), - minor->debugfs_root, minor); - - if (ret) { - DRM_DEV_ERROR(dev->dev, "could not install mdp5_debugfs_list\n"); - return ret; - } + drm_debugfs_create_files(mdp5_debugfs_list, + ARRAY_SIZE(mdp5_debugfs_list), + minor->debugfs_root, minor);
return 0; } diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c index 1c74381a4fc9..6378157e1fff 100644 --- a/drivers/gpu/drm/msm/msm_debugfs.c +++ b/drivers/gpu/drm/msm/msm_debugfs.c @@ -220,14 +220,9 @@ int msm_debugfs_init(struct drm_minor *minor) struct msm_drm_private *priv = dev->dev_private; int ret;
- ret = drm_debugfs_create_files(msm_debugfs_list, - ARRAY_SIZE(msm_debugfs_list), - minor->debugfs_root, minor); - - if (ret) { - DRM_DEV_ERROR(dev->dev, "could not install msm_debugfs_list\n"); - return ret; - } + drm_debugfs_create_files(msm_debugfs_list, + ARRAY_SIZE(msm_debugfs_list), + minor->debugfs_root, minor);
debugfs_create_file("gpu", S_IRUSR, minor->debugfs_root, dev, &msm_gpu_fops); @@ -238,7 +233,7 @@ int msm_debugfs_init(struct drm_minor *minor) return ret; }
- return ret; + return 0; } #endif