Re: [PATCH v1] thermal/debugfs: Remove unnecessary debugfs_create_dir() error check in thermal_debug_init()

From: Rafael J. Wysocki
Date: Mon Jan 15 2024 - 10:52:51 EST


On Mon, Jan 15, 2024 at 9:25 AM Minjie Du <duminjie@xxxxxxxx> wrote:
>
> This patch removes the debugfs_create_dir() error checking in
> thermal_debug_init(). Because the debugfs_create_dir() is developed
> in a way that the caller can safely handle the errors that
> occur during the creation of DebugFS nodes.

I honestly don't see what the purpose of this patch is.

> Signed-off-by: Minjie Du <duminjie@xxxxxxxx>
> ---
> drivers/thermal/thermal_debugfs.c | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/drivers/thermal/thermal_debugfs.c b/drivers/thermal/thermal_debugfs.c
> index a3fa09235da1..695253559a61 100644
> --- a/drivers/thermal/thermal_debugfs.c
> +++ b/drivers/thermal/thermal_debugfs.c
> @@ -172,12 +172,8 @@ struct thermal_debugfs {
> void thermal_debug_init(void)
> {
> d_root = debugfs_create_dir("thermal", NULL);
> - if (!d_root)
> - return;
>
> d_cdev = debugfs_create_dir("cooling_devices", d_root);
> - if (!d_cdev)
> - return;
>
> d_tz = debugfs_create_dir("thermal_zones", d_root);
> }
> --