diff mbox series

[3/6] drm/msm: Remove struct msm_fbdev

Message ID 20230330074150.7637-4-tzimmermann@suse.de (mailing list archive)
State Superseded
Headers show
Series drm/msm: Convert fbdev to DRM client | expand

Commit Message

Thomas Zimmermann March 30, 2023, 7:41 a.m. UTC
Remove struct msm_fbdev, which is an empty wrapper around struct
drm_fb_helper. Use the latter directly. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/gpu/drm/msm/msm_fbdev.c | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)

Comments

Dmitry Baryshkov March 30, 2023, 9:57 a.m. UTC | #1
On Thu, 30 Mar 2023 at 10:41, Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Remove struct msm_fbdev, which is an empty wrapper around struct
> drm_fb_helper. Use the latter directly. No functional changes.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
> ---
>  drivers/gpu/drm/msm/msm_fbdev.c | 19 +++----------------
>  1 file changed, 3 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c
> index 323a79d9ef83..0985486d194b 100644
> --- a/drivers/gpu/drm/msm/msm_fbdev.c
> +++ b/drivers/gpu/drm/msm/msm_fbdev.c
> @@ -18,12 +18,6 @@
>   * fbdev funcs, to implement legacy fbdev interface on top of drm driver
>   */
>
> -#define to_msm_fbdev(x) container_of(x, struct msm_fbdev, base)
> -
> -struct msm_fbdev {
> -       struct drm_fb_helper base;
> -};
> -
>  static int msm_fbdev_mmap(struct fb_info *info, struct vm_area_struct *vma)
>  {
>         struct drm_fb_helper *helper = (struct drm_fb_helper *)info->par;
> @@ -129,16 +123,13 @@ static const struct drm_fb_helper_funcs msm_fb_helper_funcs = {
>  struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev)
>  {
>         struct msm_drm_private *priv = dev->dev_private;
> -       struct msm_fbdev *fbdev;
>         struct drm_fb_helper *helper;
>         int ret;
>
> -       fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
> -       if (!fbdev)
> +       helper = kzalloc(sizeof(*helper), GFP_KERNEL);
> +       if (!helper)
>                 return NULL;
>
> -       helper = &fbdev->base;
> -
>         drm_fb_helper_prepare(dev, helper, 32, &msm_fb_helper_funcs);
>
>         ret = drm_fb_helper_init(dev, helper);
> @@ -159,7 +150,6 @@ struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev)
>         drm_fb_helper_fini(helper);
>  fail:
>         drm_fb_helper_unprepare(helper);
> -       kfree(fbdev);

I think this will leak the newly created helper instance.

>         return NULL;
>  }
>
> @@ -168,7 +158,6 @@ void msm_fbdev_free(struct drm_device *dev)
>         struct msm_drm_private *priv = dev->dev_private;
>         struct drm_fb_helper *helper = priv->fbdev;
>         struct drm_framebuffer *fb = helper->fb;
> -       struct msm_fbdev *fbdev;
>
>         DBG();
>
> @@ -176,8 +165,6 @@ void msm_fbdev_free(struct drm_device *dev)
>
>         drm_fb_helper_fini(helper);
>
> -       fbdev = to_msm_fbdev(priv->fbdev);
> -
>         /* this will free the backing object */
>         if (fb) {
>                 struct drm_gem_object *bo = msm_framebuffer_bo(fb, 0);
> @@ -186,7 +173,7 @@ void msm_fbdev_free(struct drm_device *dev)
>         }
>
>         drm_fb_helper_unprepare(helper);
> -       kfree(fbdev);
> +       kfree(helper);
>
>         priv->fbdev = NULL;
>  }
> --
> 2.40.0
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c
index 323a79d9ef83..0985486d194b 100644
--- a/drivers/gpu/drm/msm/msm_fbdev.c
+++ b/drivers/gpu/drm/msm/msm_fbdev.c
@@ -18,12 +18,6 @@ 
  * fbdev funcs, to implement legacy fbdev interface on top of drm driver
  */
 
-#define to_msm_fbdev(x) container_of(x, struct msm_fbdev, base)
-
-struct msm_fbdev {
-	struct drm_fb_helper base;
-};
-
 static int msm_fbdev_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
 	struct drm_fb_helper *helper = (struct drm_fb_helper *)info->par;
@@ -129,16 +123,13 @@  static const struct drm_fb_helper_funcs msm_fb_helper_funcs = {
 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev)
 {
 	struct msm_drm_private *priv = dev->dev_private;
-	struct msm_fbdev *fbdev;
 	struct drm_fb_helper *helper;
 	int ret;
 
-	fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
-	if (!fbdev)
+	helper = kzalloc(sizeof(*helper), GFP_KERNEL);
+	if (!helper)
 		return NULL;
 
-	helper = &fbdev->base;
-
 	drm_fb_helper_prepare(dev, helper, 32, &msm_fb_helper_funcs);
 
 	ret = drm_fb_helper_init(dev, helper);
@@ -159,7 +150,6 @@  struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev)
 	drm_fb_helper_fini(helper);
 fail:
 	drm_fb_helper_unprepare(helper);
-	kfree(fbdev);
 	return NULL;
 }
 
@@ -168,7 +158,6 @@  void msm_fbdev_free(struct drm_device *dev)
 	struct msm_drm_private *priv = dev->dev_private;
 	struct drm_fb_helper *helper = priv->fbdev;
 	struct drm_framebuffer *fb = helper->fb;
-	struct msm_fbdev *fbdev;
 
 	DBG();
 
@@ -176,8 +165,6 @@  void msm_fbdev_free(struct drm_device *dev)
 
 	drm_fb_helper_fini(helper);
 
-	fbdev = to_msm_fbdev(priv->fbdev);
-
 	/* this will free the backing object */
 	if (fb) {
 		struct drm_gem_object *bo = msm_framebuffer_bo(fb, 0);
@@ -186,7 +173,7 @@  void msm_fbdev_free(struct drm_device *dev)
 	}
 
 	drm_fb_helper_unprepare(helper);
-	kfree(fbdev);
+	kfree(helper);
 
 	priv->fbdev = NULL;
 }