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From: Ryan Mallon <rmallon@gmail.com>
To: yan <clouds.yan@gmail.com>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] proc: return -ENOMEM when inode allocation failed
Date: Tue, 04 Sep 2012 10:38:47 +1000	[thread overview]
Message-ID: <50454D97.2060002@gmail.com> (raw)
In-Reply-To: <1346681648-21427-2-git-send-email-clouds.yan@gmail.com>

On 04/09/12 00:14, yan wrote:
> Signed-off-by: yan <clouds.yan@gmail.com>
> ---
>  fs/proc/generic.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/proc/generic.c b/fs/proc/generic.c
> index b3647fe..9e8f631 100644
> --- a/fs/proc/generic.c
> +++ b/fs/proc/generic.c
> @@ -427,7 +427,7 @@ struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *dir,
>  		if (!memcmp(dentry->d_name.name, de->name, de->namelen)) {
>  			pde_get(de);
>  			spin_unlock(&proc_subdir_lock);
> -			error = -EINVAL;
> +			error = -ENOMEM;

This seems incorrect. This function doesn't allocate anything, it looks
up an inode. From my reading it looks like -EINVAL is returned here if
the dentry name matches, but the inode cannot be found.

~Ryan


  reply	other threads:[~2012-09-04  0:38 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-03 14:14 [PATCH 0/3] Trivial code clean for procfs yan
2012-09-03 14:14 ` [PATCH 1/3] proc: return -ENOMEM when inode allocation failed yan
2012-09-04  0:38   ` Ryan Mallon [this message]
2012-09-04  3:02   ` Cong Wang
2012-09-04  9:22     ` yan yan
2012-09-04 22:41       ` Andrew Morton
2012-09-05  7:15       ` Cong Wang
2012-09-05  7:57         ` yan yan
2012-09-03 14:14 ` [PATCH 2/3] proc : no need to initialize proc_inode->fd in proc_get_inode yan
2012-09-04 22:49   ` Andrew Morton
2012-09-03 14:14 ` [PATCH 3/3] proc: use kzalloc instead of kmalloc and memset yan
2012-09-04  0:44   ` Ryan Mallon
2012-09-04  9:10     ` yan yan

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