[PATCH 02/24] drm/omap: cleanup fbdev init/free

[Tomi Valkeinen]

omap_fbdev_init() and omap_fbdev_free() use priv->fbdev directly.
However, omap_fbdev_init() returns the fbdev, and omap_drv.c also
assigns the return value to priv->fbdev. This is slightly confusing.

Clean this up by removing the omap_fbdev_init() return value, as we
don't care whether fbdev init succeeded or not. Also change omap_drv.c
to call omap_fbdev_init() always, and omap_fbdev_init() does the check
if fbdev was initialized.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
---
 drivers/gpu/drm/omapdrm/omap_drv.c   |  9 ++++-----
 drivers/gpu/drm/omapdrm/omap_fbdev.c | 10 +++++-----
 drivers/gpu/drm/omapdrm/omap_fbdev.h |  5 ++---
 3 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
index dd68b2556f5b..485684c637ff 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -584,7 +584,7 @@ static int pdev_probe(struct platform_device *pdev)
 	for (i = 0; i < priv->num_crtcs; i++)
 		drm_crtc_vblank_off(priv->crtcs[i]);
 
-	priv->fbdev = omap_fbdev_init(ddev);
+	omap_fbdev_init(ddev);
 
 	drm_kms_helper_poll_init(ddev);
 	omap_modeset_enable_external_hpd();
@@ -602,8 +602,8 @@ static int pdev_probe(struct platform_device *pdev)
 err_cleanup_helpers:
 	omap_modeset_disable_external_hpd();
 	drm_kms_helper_poll_fini(ddev);
-	if (priv->fbdev)
-		omap_fbdev_free(ddev);
+
+	omap_fbdev_free(ddev);
 err_cleanup_modeset:
 	drm_mode_config_cleanup(ddev);
 	omap_drm_irq_uninstall(ddev);
@@ -632,8 +632,7 @@ static int pdev_remove(struct platform_device *pdev)
 	omap_modeset_disable_external_hpd();
 	drm_kms_helper_poll_fini(ddev);
 
-	if (priv->fbdev)
-		omap_fbdev_free(ddev);
+	omap_fbdev_free(ddev);
 
 	drm_atomic_helper_shutdown(ddev);
 
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c b/drivers/gpu/drm/omapdrm/omap_fbdev.c
index 632ebcf2165f..30ce3d562414 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@@ -242,7 +242,7 @@ static struct drm_fb_helper *get_fb(struct fb_info *fbi)
 }
 
 /* initialize fbdev helper */
-struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev)
+void omap_fbdev_init(struct drm_device *dev)
 {
 	struct omap_drm_private *priv = dev->dev_private;
 	struct omap_fbdev *fbdev = NULL;
@@ -275,7 +275,7 @@ struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev)
 
 	priv->fbdev = helper;
 
-	return helper;
+	return;
 
 fini:
 	drm_fb_helper_fini(helper);
@@ -283,9 +283,6 @@ struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev)
 	kfree(fbdev);
 
 	dev_warn(dev->dev, "omap_fbdev_init failed\n");
-	/* well, limp along without an fbdev.. maybe X11 will work? */
-
-	return NULL;
 }
 
 void omap_fbdev_free(struct drm_device *dev)
@@ -296,6 +293,9 @@ void omap_fbdev_free(struct drm_device *dev)
 
 	DBG();
 
+	if (!priv->fbdev)
+		return;
+
 	drm_fb_helper_unregister_fbi(helper);
 
 	drm_fb_helper_fini(helper);
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.h b/drivers/gpu/drm/omapdrm/omap_fbdev.h
index 1f5ba0996a1a..3bd6ea661a18 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.h
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.h
@@ -24,12 +24,11 @@ struct drm_device;
 struct drm_fb_helper;
 
 #ifdef CONFIG_DRM_FBDEV_EMULATION
-struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev);
+void omap_fbdev_init(struct drm_device *dev);
 void omap_fbdev_free(struct drm_device *dev);
 #else
-static inline struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev)
+static inline void omap_fbdev_init(struct drm_device *dev)
 {
-	return NULL;
 }
 static inline void omap_fbdev_free(struct drm_device *dev)
 {
-- 
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