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Subject[PATCH 15/21] drm/sti: remove use drm_debugfs functions as return value
Date
Since commit 987d65d01356 (drm: debugfs: make
drm_debugfs_create_files() never fail), drm_debugfs_create_files() never
fails, and should return void. This change therefore removes it uses as
a return value in various functions across drm/sti.

With these changes, the affected functions have been changed to use a void
return value.

Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
---
drivers/gpu/drm/sti/sti_cursor.c | 14 ++++++++------
drivers/gpu/drm/sti/sti_drv.c | 16 ++++------------
drivers/gpu/drm/sti/sti_dvo.c | 13 +++++--------
drivers/gpu/drm/sti/sti_gdp.c | 7 ++++---
drivers/gpu/drm/sti/sti_hda.c | 13 +++++--------
drivers/gpu/drm/sti/sti_hdmi.c | 13 +++++--------
drivers/gpu/drm/sti/sti_hqvdp.c | 12 +++++++-----
drivers/gpu/drm/sti/sti_mixer.c | 7 ++++---
drivers/gpu/drm/sti/sti_tvout.c | 13 +++++--------
drivers/gpu/drm/sti/sti_vid.c | 8 ++++----
drivers/gpu/drm/sti/sti_vid.h | 2 +-
11 files changed, 52 insertions(+), 66 deletions(-)

diff --git a/drivers/gpu/drm/sti/sti_cursor.c b/drivers/gpu/drm/sti/sti_cursor.c
index ea64c1dcaf63..a98057431023 100644
--- a/drivers/gpu/drm/sti/sti_cursor.c
+++ b/drivers/gpu/drm/sti/sti_cursor.c
@@ -131,17 +131,17 @@ static struct drm_info_list cursor_debugfs_files[] = {
{ "cursor", cursor_dbg_show, 0, NULL },
};

-static int cursor_debugfs_init(struct sti_cursor *cursor,
- struct drm_minor *minor)
+static void cursor_debugfs_init(struct sti_cursor *cursor,
+ struct drm_minor *minor)
{
unsigned int i;

for (i = 0; i < ARRAY_SIZE(cursor_debugfs_files); i++)
cursor_debugfs_files[i].data = cursor;

- return drm_debugfs_create_files(cursor_debugfs_files,
- ARRAY_SIZE(cursor_debugfs_files),
- minor->debugfs_root, minor);
+ drm_debugfs_create_files(cursor_debugfs_files,
+ ARRAY_SIZE(cursor_debugfs_files),
+ minor->debugfs_root, minor);
}

static void sti_cursor_argb8888_to_clut8(struct sti_cursor *cursor, u32 *src)
@@ -342,7 +342,9 @@ static int sti_cursor_late_register(struct drm_plane *drm_plane)
struct sti_plane *plane = to_sti_plane(drm_plane);
struct sti_cursor *cursor = to_sti_cursor(plane);

- return cursor_debugfs_init(cursor, drm_plane->dev->primary);
+ cursor_debugfs_init(cursor, drm_plane->dev->primary);
+
+ return 0;
}

static const struct drm_plane_funcs sti_cursor_plane_helpers_funcs = {
diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
index 50870d8cbb76..3f9db3e3f397 100644
--- a/drivers/gpu/drm/sti/sti_drv.c
+++ b/drivers/gpu/drm/sti/sti_drv.c
@@ -92,24 +92,16 @@ static struct drm_info_list sti_drm_dbg_list[] = {
{"fps_get", sti_drm_fps_dbg_show, 0},
};

-static int sti_drm_dbg_init(struct drm_minor *minor)
+static void sti_drm_dbg_init(struct drm_minor *minor)
{
- int ret;
-
- ret = drm_debugfs_create_files(sti_drm_dbg_list,
- ARRAY_SIZE(sti_drm_dbg_list),
- minor->debugfs_root, minor);
- if (ret)
- goto err;
+ drm_debugfs_create_files(sti_drm_dbg_list,
+ ARRAY_SIZE(sti_drm_dbg_list),
+ minor->debugfs_root, minor);

debugfs_create_file("fps_show", S_IRUGO | S_IWUSR, minor->debugfs_root,
minor->dev, &sti_drm_fps_fops);

DRM_INFO("%s: debugfs installed\n", DRIVER_NAME);
- return 0;
-err:
- DRM_ERROR("%s: cannot install debugfs\n", DRIVER_NAME);
- return ret;
}

static const struct drm_mode_config_funcs sti_mode_config_funcs = {
diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c
index a0709647f678..0032e1830bc5 100644
--- a/drivers/gpu/drm/sti/sti_dvo.c
+++ b/drivers/gpu/drm/sti/sti_dvo.c
@@ -197,16 +197,16 @@ static struct drm_info_list dvo_debugfs_files[] = {
{ "dvo", dvo_dbg_show, 0, NULL },
};

-static int dvo_debugfs_init(struct sti_dvo *dvo, struct drm_minor *minor)
+static void dvo_debugfs_init(struct sti_dvo *dvo, struct drm_minor *minor)
{
unsigned int i;

for (i = 0; i < ARRAY_SIZE(dvo_debugfs_files); i++)
dvo_debugfs_files[i].data = dvo;

- return drm_debugfs_create_files(dvo_debugfs_files,
- ARRAY_SIZE(dvo_debugfs_files),
- minor->debugfs_root, minor);
+ drm_debugfs_create_files(dvo_debugfs_files,
+ ARRAY_SIZE(dvo_debugfs_files),
+ minor->debugfs_root, minor);
}

static void sti_dvo_disable(struct drm_bridge *bridge)
@@ -406,10 +406,7 @@ static int sti_dvo_late_register(struct drm_connector *connector)
= to_sti_dvo_connector(connector);
struct sti_dvo *dvo = dvo_connector->dvo;

- if (dvo_debugfs_init(dvo, dvo->drm_dev->primary)) {
- DRM_ERROR("DVO debugfs setup failed\n");
- return -EINVAL;
- }
+ dvo_debugfs_init(dvo, dvo->drm_dev->primary);

return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c
index 11595c748844..2d5a2b5b78b8 100644
--- a/drivers/gpu/drm/sti/sti_gdp.c
+++ b/drivers/gpu/drm/sti/sti_gdp.c
@@ -343,9 +343,10 @@ static int gdp_debugfs_init(struct sti_gdp *gdp, struct drm_minor *minor)
for (i = 0; i < nb_files; i++)
gdp_debugfs_files[i].data = gdp;

- return drm_debugfs_create_files(gdp_debugfs_files,
- nb_files,
- minor->debugfs_root, minor);
+ drm_debugfs_create_files(gdp_debugfs_files,
+ nb_files,
+ minor->debugfs_root, minor);
+ return 0;
}

static int sti_gdp_fourcc2format(int fourcc)
diff --git a/drivers/gpu/drm/sti/sti_hda.c b/drivers/gpu/drm/sti/sti_hda.c
index f3f28d79b0e4..a1ec891eaf3a 100644
--- a/drivers/gpu/drm/sti/sti_hda.c
+++ b/drivers/gpu/drm/sti/sti_hda.c
@@ -367,16 +367,16 @@ static struct drm_info_list hda_debugfs_files[] = {
{ "hda", hda_dbg_show, 0, NULL },
};

-static int hda_debugfs_init(struct sti_hda *hda, struct drm_minor *minor)
+static void hda_debugfs_init(struct sti_hda *hda, struct drm_minor *minor)
{
unsigned int i;

for (i = 0; i < ARRAY_SIZE(hda_debugfs_files); i++)
hda_debugfs_files[i].data = hda;

- return drm_debugfs_create_files(hda_debugfs_files,
- ARRAY_SIZE(hda_debugfs_files),
- minor->debugfs_root, minor);
+ drm_debugfs_create_files(hda_debugfs_files,
+ ARRAY_SIZE(hda_debugfs_files),
+ minor->debugfs_root, minor);
}

/**
@@ -643,10 +643,7 @@ static int sti_hda_late_register(struct drm_connector *connector)
= to_sti_hda_connector(connector);
struct sti_hda *hda = hda_connector->hda;

- if (hda_debugfs_init(hda, hda->drm_dev->primary)) {
- DRM_ERROR("HDA debugfs setup failed\n");
- return -EINVAL;
- }
+ hda_debugfs_init(hda, hda->drm_dev->primary);

return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index 18eaf786ffa4..5b15c4974e6b 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -727,16 +727,16 @@ static struct drm_info_list hdmi_debugfs_files[] = {
{ "hdmi", hdmi_dbg_show, 0, NULL },
};

-static int hdmi_debugfs_init(struct sti_hdmi *hdmi, struct drm_minor *minor)
+static void hdmi_debugfs_init(struct sti_hdmi *hdmi, struct drm_minor *minor)
{
unsigned int i;

for (i = 0; i < ARRAY_SIZE(hdmi_debugfs_files); i++)
hdmi_debugfs_files[i].data = hdmi;

- return drm_debugfs_create_files(hdmi_debugfs_files,
- ARRAY_SIZE(hdmi_debugfs_files),
- minor->debugfs_root, minor);
+ drm_debugfs_create_files(hdmi_debugfs_files,
+ ARRAY_SIZE(hdmi_debugfs_files),
+ minor->debugfs_root, minor);
}

static void sti_hdmi_disable(struct drm_bridge *bridge)
@@ -1113,10 +1113,7 @@ static int sti_hdmi_late_register(struct drm_connector *connector)
= to_sti_hdmi_connector(connector);
struct sti_hdmi *hdmi = hdmi_connector->hdmi;

- if (hdmi_debugfs_init(hdmi, hdmi->drm_dev->primary)) {
- DRM_ERROR("HDMI debugfs setup failed\n");
- return -EINVAL;
- }
+ hdmi_debugfs_init(hdmi, hdmi->drm_dev->primary);

return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index 1015abe0ce08..5a4e12194a77 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -639,16 +639,16 @@ static struct drm_info_list hqvdp_debugfs_files[] = {
{ "hqvdp", hqvdp_dbg_show, 0, NULL },
};

-static int hqvdp_debugfs_init(struct sti_hqvdp *hqvdp, struct drm_minor *minor)
+static void hqvdp_debugfs_init(struct sti_hqvdp *hqvdp, struct drm_minor *minor)
{
unsigned int i;

for (i = 0; i < ARRAY_SIZE(hqvdp_debugfs_files); i++)
hqvdp_debugfs_files[i].data = hqvdp;

- return drm_debugfs_create_files(hqvdp_debugfs_files,
- ARRAY_SIZE(hqvdp_debugfs_files),
- minor->debugfs_root, minor);
+ drm_debugfs_create_files(hqvdp_debugfs_files,
+ ARRAY_SIZE(hqvdp_debugfs_files),
+ minor->debugfs_root, minor);
}

/**
@@ -1274,7 +1274,9 @@ static int sti_hqvdp_late_register(struct drm_plane *drm_plane)
struct sti_plane *plane = to_sti_plane(drm_plane);
struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);

- return hqvdp_debugfs_init(hqvdp, drm_plane->dev->primary);
+ hqvdp_debugfs_init(hqvdp, drm_plane->dev->primary);
+
+ return 0;
}

static const struct drm_plane_funcs sti_hqvdp_plane_helpers_funcs = {
diff --git a/drivers/gpu/drm/sti/sti_mixer.c b/drivers/gpu/drm/sti/sti_mixer.c
index c3a3e1e5fc8a..0ee084049555 100644
--- a/drivers/gpu/drm/sti/sti_mixer.c
+++ b/drivers/gpu/drm/sti/sti_mixer.c
@@ -200,9 +200,10 @@ int sti_mixer_debugfs_init(struct sti_mixer *mixer, struct drm_minor *minor)
for (i = 0; i < nb_files; i++)
mixer_debugfs_files[i].data = mixer;

- return drm_debugfs_create_files(mixer_debugfs_files,
- nb_files,
- minor->debugfs_root, minor);
+ drm_debugfs_create_files(mixer_debugfs_files,
+ nb_files,
+ minor->debugfs_root, minor);
+ return 0;
}

void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable)
diff --git a/drivers/gpu/drm/sti/sti_tvout.c b/drivers/gpu/drm/sti/sti_tvout.c
index c36a8da373cb..df3817f0fd30 100644
--- a/drivers/gpu/drm/sti/sti_tvout.c
+++ b/drivers/gpu/drm/sti/sti_tvout.c
@@ -570,16 +570,16 @@ static struct drm_info_list tvout_debugfs_files[] = {
{ "tvout", tvout_dbg_show, 0, NULL },
};

-static int tvout_debugfs_init(struct sti_tvout *tvout, struct drm_minor *minor)
+static void tvout_debugfs_init(struct sti_tvout *tvout, struct drm_minor *minor)
{
unsigned int i;

for (i = 0; i < ARRAY_SIZE(tvout_debugfs_files); i++)
tvout_debugfs_files[i].data = tvout;

- return drm_debugfs_create_files(tvout_debugfs_files,
- ARRAY_SIZE(tvout_debugfs_files),
- minor->debugfs_root, minor);
+ drm_debugfs_create_files(tvout_debugfs_files,
+ ARRAY_SIZE(tvout_debugfs_files),
+ minor->debugfs_root, minor);
}

static void sti_tvout_encoder_dpms(struct drm_encoder *encoder, int mode)
@@ -603,14 +603,11 @@ static void sti_tvout_encoder_destroy(struct drm_encoder *encoder)
static int sti_tvout_late_register(struct drm_encoder *encoder)
{
struct sti_tvout *tvout = to_sti_tvout(encoder);
- int ret;

if (tvout->debugfs_registered)
return 0;

- ret = tvout_debugfs_init(tvout, encoder->dev->primary);
- if (ret)
- return ret;
+ tvout_debugfs_init(tvout, encoder->dev->primary);

tvout->debugfs_registered = true;
return 0;
diff --git a/drivers/gpu/drm/sti/sti_vid.c b/drivers/gpu/drm/sti/sti_vid.c
index 2d4230410464..2d818397918d 100644
--- a/drivers/gpu/drm/sti/sti_vid.c
+++ b/drivers/gpu/drm/sti/sti_vid.c
@@ -124,16 +124,16 @@ static struct drm_info_list vid_debugfs_files[] = {
{ "vid", vid_dbg_show, 0, NULL },
};

-int vid_debugfs_init(struct sti_vid *vid, struct drm_minor *minor)
+void vid_debugfs_init(struct sti_vid *vid, struct drm_minor *minor)
{
unsigned int i;

for (i = 0; i < ARRAY_SIZE(vid_debugfs_files); i++)
vid_debugfs_files[i].data = vid;

- return drm_debugfs_create_files(vid_debugfs_files,
- ARRAY_SIZE(vid_debugfs_files),
- minor->debugfs_root, minor);
+ drm_debugfs_create_files(vid_debugfs_files,
+ ARRAY_SIZE(vid_debugfs_files),
+ minor->debugfs_root, minor);
}

void sti_vid_commit(struct sti_vid *vid,
diff --git a/drivers/gpu/drm/sti/sti_vid.h b/drivers/gpu/drm/sti/sti_vid.h
index 9dbd78461de1..991849ba50b5 100644
--- a/drivers/gpu/drm/sti/sti_vid.h
+++ b/drivers/gpu/drm/sti/sti_vid.h
@@ -26,6 +26,6 @@ void sti_vid_disable(struct sti_vid *vid);
struct sti_vid *sti_vid_create(struct device *dev, struct drm_device *drm_dev,
int id, void __iomem *baseaddr);

-int vid_debugfs_init(struct sti_vid *vid, struct drm_minor *minor);
+void vid_debugfs_init(struct sti_vid *vid, struct drm_minor *minor);

#endif
--
2.25.0
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