Re: [PATCH 3.16 232/366] tracing: Deletion of an unnecessary check before iput()

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On Sun, 2018-10-14 at 16:25 +0100, Ben Hutchings wrote:
> 3.16.60-rc1 review patch.  If anyone has any objections, please let me know.

I believe that no stable or backport kernel needs to
apply patches like this unless it's needed for other
real patches to be applied more easily.

> ------------------
> 
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> 
> commit 16a8ef2751801346f1f76a18685b2beb63cd170f upstream.
> 
> The iput() function tests whether its argument is NULL and then
> returns immediately. Thus the test around the call is not needed.
> 
> This issue was detected by using the Coccinelle software.
> 
> Link: http://lkml.kernel.org/r/5468F875.7080907@xxxxxxxxxxxxxxxxxxxxx
> 
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
> Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
> ---
>  kernel/trace/trace_uprobe.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> --- a/kernel/trace/trace_uprobe.c
> +++ b/kernel/trace/trace_uprobe.c
> @@ -552,8 +552,7 @@ error:
>  	return ret;
>  
>  fail_address_parse:
> -	if (inode)
> -		iput(inode);
> +	iput(inode);
>  
>  	pr_info("Failed to parse address or file.\n");
>  
> 




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