linux-kernel - Re: [PATCH] fs/eventpoll.c: fix compilation warning

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Date:	Fri, 14 Jan 2011 15:08:21 +0530
From:	viresh kumar <viresh.kumar@...com>
To:	Jack Stone <jwjstone@...tmail.fm>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH] fs/eventpoll.c: fix compilation warning

On 01/14/2011 03:03 PM, Jack Stone wrote:
>> >-	long slack;
>> >+	long slack = 0;
>> > 	wait_queue_t wait;
>> > 	struct timespec end_time;
>> > 	ktime_t expires, *to = NULL;
> I don't think this is the correct fix. This function is fine unless timeout is negative.
> 
> If a negative timeout is possible then this function will create timer far in the future.
>I'll leave it up to the maintainer how to solve that one. The two solutions I can see are making
>timeout unsigned or extending the bottom case of the if to <=0.
> 
> Either way we should use uninitalized_var() rather than setting it to zero.

Using uninitialized var gives compilation warning, How should we fix that.

-- 
viresh
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