linux-kernel - Re: [PATCH] drivers/ide/ide-probe.c: uninitialized variable 'rc'

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Message-ID: <87myifmxpk.fsf@denkblock.local>
Date:	Thu, 11 Sep 2008 00:40:23 +0200
From:	Elias Oltmanns <eo@...ensachen.de>
To:	"Steven Noonan" <steven@...inklabs.net>
Cc:	"Bartlomiej Zolnierkiewicz" <bzolnier@...il.com>,
	linux-kernel@...r.kernel.org, mingo@...e.hu
Subject: Re: [PATCH] drivers/ide/ide-probe.c: uninitialized variable 'rc'

"Steven Noonan" <steven@...inklabs.net> wrote:
> On Wed, Sep 10, 2008 at 2:09 PM, Bartlomiej Zolnierkiewicz
> <bzolnier@...il.com> wrote:
>>
>
>> I recall seeing identical patch before:
>>
>>        http://article.gmane.org/gmane.linux.ide/33107
>>
>> Does the existing code really results in gcc warning?
>>
>>
>
> Yes, because GCC thinks it's possible that the for loop has zero
> iterations (and hence, 'rc' is never touched).

What about changing the declaration to

	int i, uninitialized_var(rc);

then?

Regards,

Elias
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