From: Chen Gang <gang.chen@asianux•com>
To: lgirdwood@gmail•com, Mark Brown <broonie@kernel•org>,
perex@perex•cz, Takashi Iwai <tiwai@suse•de>
Cc: alsa-devel@alsa-project•org,
"linuxppc-dev@lists•ozlabs.org" <linuxppc-dev@lists•ozlabs.org>
Subject: Re: [PATCH] sound/soc/fsl/fsl_ssi.c: let checking none-zero instead of checking NO_IRQ
Date: Mon, 23 Sep 2013 11:35:16 +0800 [thread overview]
Message-ID: <523FB6F4.60803@asianux.com> (raw)
In-Reply-To: <523FB47C.8010800@asianux.com>
On 09/23/2013 11:24 AM, Chen Gang wrote:
> NO_IRQ may be defined as '(unsigned int) -1' in some architectures
> (arm, sh ...), and either may not be defined in some architectures
> which can enable SND_SOC_FSL_SSI (e.g. allmodconfig for arc).
>
> When irq_of_parse_and_map() fails, it will always return 0, so need let
> checking none-zero instead of checking NO_IRQ, or will cause compiling
> issue or run time bug in some architectures.
>
Oh, sorry, the subject and comment are incorrect, need use "zero"
instead of "none-zero".
I will send patch v2 for it.
>
> Signed-off-by: Chen Gang <gang.chen@asianux•com>
> ---
> sound/soc/fsl/fsl_ssi.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
> index 6ac8730..6c17d3e 100644
> --- a/sound/soc/fsl/fsl_ssi.c
> +++ b/sound/soc/fsl/fsl_ssi.c
> @@ -936,7 +936,7 @@ static int fsl_ssi_probe(struct platform_device *pdev)
> ssi_private->ssi_phys = res.start;
>
> ssi_private->irq = irq_of_parse_and_map(np, 0);
> - if (ssi_private->irq == NO_IRQ) {
> + if (!ssi_private->irq) {
> dev_err(&pdev->dev, "no irq for node %s\n", np->full_name);
> return -ENXIO;
> }
>
--
Chen Gang
next prev parent reply other threads:[~2013-09-23 3:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-23 3:24 [PATCH] sound/soc/fsl/fsl_ssi.c: let checking none-zero instead of checking NO_IRQ Chen Gang
2013-09-23 3:35 ` Chen Gang [this message]
2013-09-23 3:36 ` [PATCH v2] sound/soc/fsl/fsl_ssi.c: let check zero instead of check NO_IRQ Chen Gang
2013-09-26 10:29 ` Mark Brown
2013-09-26 10:40 ` Chen Gang
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