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drm: convert .debugfs_init() hook to return void.

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As a result of commit 987d65d013 (drm: debugfs: make
drm_debugfs_create_files() never fail) and changes to various debugfs
functions in drm/core and across various drivers, there is no need for
the drm_driver.debugfs_init() hook to have a return value. Therefore,
declare it as void.

This also includes refactoring all users of the .debugfs_init() hook to
return void across the subsystem.

v2: include changes to the hook and drivers that use it in one patch to
prevent driver breakage and enable individual successful compilation of
this change.

References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.html
Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200310133121.27913-18-wambui.karugax@gmail.com
This commit is contained in:
Wambui Karuga
2020-03-10 16:31:21 +03:00
committed by Daniel Vetter
parent 0df1082374
commit 7ce84471e3
39 changed files with 58 additions and 118 deletions
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6
drivers/gpu/drm/drm_mipi_dbi.c
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@@ -1308,10 +1308,8 @@ static const struct file_operations mipi_dbi_debugfs_command_fops = {
* controller or getting the read command values.
* Drivers can use this as their &drm_driver->debugfs_init callback.
*
* Returns:
* Zero on success, negative error code on failure.
*/
int mipi_dbi_debugfs_init(struct drm_minor *minor)
void mipi_dbi_debugfs_init(struct drm_minor *minor)
{
struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(minor->dev);
umode_t mode = S_IFREG | S_IWUSR;
@@ -1320,8 +1318,6 @@ int mipi_dbi_debugfs_init(struct drm_minor *minor)
mode |= S_IRUGO;
debugfs_create_file("command", mode, minor->debugfs_root, dbidev,
&mipi_dbi_debugfs_command_fops);
return 0;
}
EXPORT_SYMBOL(mipi_dbi_debugfs_init);