Re: [PATCH -next v2] platform/olpc: Remove redundant null pointer checks in olpc_ec_setup_debugfs()

[Hans de Goede <hdegoede@redhat.com>]

Hi,

On 9/7/24 5:09 AM, Li Zetao wrote:
> Since the debugfs_create_dir() never returns a null pointer, checking
> the return value for a null pointer is redundant. Since
> debugfs_create_file() can deal with a ERR_PTR() style pointer, drop
> the check.
> 
> Signed-off-by: Li Zetao <lizetao1@huawei.com>

Thank you for your patch, I've applied this patch to my review-hans 
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans




> ---
> v1 -> v2:
> v1:
> https://lore.kernel.org/all/20240903143714.2004947-1-lizetao1@huawei.com/
> 
>  drivers/platform/olpc/olpc-ec.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/platform/olpc/olpc-ec.c b/drivers/platform/olpc/olpc-ec.c
> index 921520475ff6..48e9861bb571 100644
> --- a/drivers/platform/olpc/olpc-ec.c
> +++ b/drivers/platform/olpc/olpc-ec.c
> @@ -332,9 +332,6 @@ static struct dentry *olpc_ec_setup_debugfs(void)
>  	struct dentry *dbgfs_dir;
>  
>  	dbgfs_dir = debugfs_create_dir("olpc-ec", NULL);
> -	if (IS_ERR_OR_NULL(dbgfs_dir))
> -		return NULL;
> -
>  	debugfs_create_file("cmd", 0600, dbgfs_dir, NULL, &ec_dbgfs_ops);
>  
>  	return dbgfs_dir;