linux-kernel - Re: [PATCH] posix-clock: Use an unsigned data type for a variable

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Message-ID: <20151220200934.GB2027@netboy>
Date:	Sun, 20 Dec 2015 21:09:34 +0100
From:	Richard Cochran <richardcochran@...il.com>
To:	SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH] posix-clock: Use an unsigned data type for a variable

On Sun, Dec 20, 2015 at 09:19:20AM +0100, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Sun, 20 Dec 2015 09:09:34 +0100
> 
> The data type "int" was used by the variable "result" in the
> function "posix_clock_poll" even though the type "uint" will usually
> be needed for the return value from a call of the function which was
> assigned to the pointer "poll" of the variable "clk".
> Reuse the type from this poll call instead.
> 
> This issue was detected by using the Coccinelle software.

Coccinelle has pointed out a type mismatch.  This fact may or may not
indicate a real problem.  You need to analyze code to see if there is
a problem and then fix the problem.

In this case, there is indeed a problem.  However, just changing the
type won't fix it.

Thanks,
Richard
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