Subject: Re: [PATCH 06/61] 9p: Prefer IS_ERR_OR_NULL over manual NULL check

From: Christian Schoenebeck <[email-masked]>
Date: Tue, 10 Mar 2026 14:45:07 +0100

On Tuesday, 10 March 2026 12:48:32 CET Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
> 
> Change generated with coccinelle.
> 
> To: Eric Van Hensbergen <[email-masked]>
> To: Latchesar Ionkov <[email-masked]>
> To: Dominique Martinet <[email-masked]>
> To: Christian Schoenebeck <[email-masked]>
> Cc: [email-masked]
> Cc: [email-masked]
> Signed-off-by: Philipp Hahn <[email-masked]>
> ---
>  fs/9p/fid.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

"fs/9p" in the subject on this one, please, not just "9p".

Except of that:

Reviewed-by: Christian Schoenebeck <[email-masked]>

> diff --git a/fs/9p/fid.h b/fs/9p/fid.h
> index
> 0d6138bee2a3d1ab565ab2d210c0a3f3bf97e4e3..3bb7ef4380e972a2d9ab67eb4aab6cc5b
> fe2eea7 100644 --- a/fs/9p/fid.h
> +++ b/fs/9p/fid.h
> @@ -27,7 +27,7 @@ static inline struct p9_fid *v9fs_fid_clone(struct dentry
> *dentry) struct p9_fid *fid, *nfid;
> 
>  	fid = v9fs_fid_lookup(dentry);
> -	if (!fid || IS_ERR(fid))
> +	if (IS_ERR_OR_NULL(fid))
>  		return fid;
> 
>  	nfid = clone_fid(fid);