linux-kernel - Re: [V9fs-developer] [PATCH] fs/9p: Remove cast from memory allocation

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Date:   Wed, 22 Feb 2017 09:08:21 +0100
From:   Greg Kurz <groug@...d.org>
To:     "Tobin C. Harding" <me@...in.cc>
Cc:     Eric Van Hensbergen <ericvh@...il.com>,
        Ron Minnich <rminnich@...dia.gov>,
        Latchesar Ionkov <lucho@...kov.net>,
        v9fs-developer@...ts.sourceforge.net,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [V9fs-developer] [PATCH] fs/9p: Remove cast from memory
 allocation

On Wed, 22 Feb 2017 17:34:13 +1100
"Tobin C. Harding" <me@...in.cc> wrote:

> Coccinelle emits WARNING: casting value returned by memory allocation
> function to (struct v9fs_inode *) is useless.
> 
> Remove unnecessary cast.
> 
> Signed-off-by: Tobin C. Harding <me@...in.cc>
> ---

Reviewed-by: Greg Kurz <groug@...d.org>

>  fs/9p/vfs_inode.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
> index f4f4450..462e9e4 100644
> --- a/fs/9p/vfs_inode.c
> +++ b/fs/9p/vfs_inode.c
> @@ -238,8 +238,7 @@ v9fs_blank_wstat(struct p9_wstat *wstat)
>  struct inode *v9fs_alloc_inode(struct super_block *sb)
>  {
>  	struct v9fs_inode *v9inode;
> -	v9inode = (struct v9fs_inode *)kmem_cache_alloc(v9fs_inode_cache,
> -							GFP_KERNEL);
> +	v9inode = kmem_cache_alloc(v9fs_inode_cache, GFP_KERNEL);
>  	if (!v9inode)
>  		return NULL;
>  #ifdef CONFIG_9P_FSCACHE


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