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From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Qing Xu <qingx@marvell.com>
Cc: "lrg@ti.com" <lrg@ti.com>,
	"haojian.zhuang@gmail.com" <haojian.zhuang@gmail.com>,
	Chao Xie <cxie4@marvell.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] regulator: max8925: fix compiler warnings
Date: Sat, 24 Nov 2012 18:55:55 +0100	[thread overview]
Message-ID: <20121124175554.GF4719@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <50AEDF00.7060709@marvell.com>

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On Fri, Nov 23, 2012 at 10:27:12AM +0800, Qing Xu wrote:

> But, in fact, it is not necessary to initialize regulator_idx.

>         for (i = 0; i < ARRAY_SIZE(max8925_regulator_info); i++) {
>                 ri = &max8925_regulator_info[i];
>                 if (ri->vol_reg == res->start) {

> ****** if regulator_idx can not get a match "i" here, it will return
> -EINVAL in below code

>                         regulator_idx = i;
>                         break;
>                 }
>         }

>         if (i == ARRAY_SIZE(max8925_regulator_info)) {
>                 dev_err(&pdev->dev, "Failed to find regulator %llu\n",
>                         (unsigned long long)res->start);
>                 return -EINVAL;
>         }

> How to solve such compiler warning?

Typically by reporting a compiler bug, though sometimes in the process
of doing that one finds out that there's some non-obvious way in which
the code can break.

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  reply	other threads:[~2012-11-24 17:55 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-22  2:11 [PATCH] regulator: max8925: fix compiler warnings Qing Xu
2012-11-23  1:41 ` Mark Brown
2012-11-23  2:27   ` Qing Xu
2012-11-24 17:55     ` Mark Brown [this message]
2012-11-26  3:07       ` Qing Xu

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