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From: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
To: Dong Aisheng <b29396-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
Cc: b20223-KZfg59tc24xl57MIdRCFDg@public.gmane.org,
	linus.walleij-0IS4wlFg1OjSUeElwK9/Pw@public.gmane.org,
	devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org,
	cjb-2X9k7bc8m7Mdnm+yROfE0A@public.gmane.org,
	s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org
Subject: Re: [PATCH v4 1/4] dt: add of_get_child_count helper function
Date: Thu, 26 Apr 2012 10:24:11 -0600	[thread overview]
Message-ID: <4F9976AB.1020502@wwwdotorg.org> (raw)
In-Reply-To: <1335451227-27709-1-git-send-email-b29396-KZfg59tc24xl57MIdRCFDg@public.gmane.org>

On 04/26/2012 08:40 AM, Dong Aisheng wrote:
> From: Dong Aisheng <dong.aisheng-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> 
> Currently most code to get child count in kernel are almost same,
> add a helper to implement this function for dt to use.

> diff --git a/include/linux/of.h b/include/linux/of.h

> +static inline int of_get_child_count(const struct device_node *np)
> +{
> +	struct device_node *child = NULL;

You don't actually need to initialize child here. It doesn't really
matter here, but in a more complex function, it might hide a
used-before-initialized error.

  parent reply	other threads:[~2012-04-26 16:24 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-26 14:40 [PATCH v4 1/4] dt: add of_get_child_count helper function Dong Aisheng
2012-04-26 14:40 ` [PATCH v3 2/4] pinctrl: pinctrl-imx: add imx pinctrl core driver Dong Aisheng
     [not found]   ` <1335451227-27709-2-git-send-email-b29396-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2012-04-26 14:44     ` Jean-Christophe PLAGNIOL-VILLARD
2012-04-26 15:15       ` Jean-Christophe PLAGNIOL-VILLARD
     [not found]         ` <20120426151536.GO9142-RQcB7r2h9QmfDR2tN2SG5Ni2O/JbrIOy@public.gmane.org>
2012-04-27  5:48           ` Shawn Guo
     [not found]             ` <20120427054842.GJ2234-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-04-27  6:28               ` Jean-Christophe PLAGNIOL-VILLARD
2012-04-27  7:25                 ` Shawn Guo
2012-04-27  7:11                   ` Jean-Christophe PLAGNIOL-VILLARD
2012-04-27  8:11                     ` Shawn Guo
2012-04-27  9:29                       ` Jean-Christophe PLAGNIOL-VILLARD
2012-04-27  3:48       ` Dong Aisheng
2012-04-27  6:31         ` Jean-Christophe PLAGNIOL-VILLARD
2012-04-27  7:30       ` Sascha Hauer
2012-04-26 14:44     ` Dong Aisheng
2012-04-27  5:30     ` Shawn Guo
2012-04-27  8:54   ` Shawn Guo
     [not found]     ` <20120427085402.GV2234-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-04-27 11:24       ` Dong Aisheng
2012-04-26 14:40 ` [PATCH v3 3/4] pinctrl: pinctrl-imx: add imx6q pinctrl driver Dong Aisheng
2012-04-27  5:35   ` Shawn Guo
2012-04-27  6:45   ` Sascha Hauer
     [not found]     ` <20120427064519.GO17184-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2012-04-27  7:16       ` Dong Aisheng
2012-04-26 14:40 ` [PATCH v3 4/4] mmc: sdhci-imx-esdhc: convert to use pinctrl subsystem Dong Aisheng
2012-04-26 16:32   ` Stephen Warren
2012-04-27  7:35   ` Sascha Hauer
     [not found]     ` <20120427073504.GS17184-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2012-04-27  8:29       ` Dong Aisheng
     [not found]         ` <20120427082930.GC826-Fb7DQEYuewWctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-04-27  8:26           ` Shawn Guo
2012-04-27  8:31         ` Sascha Hauer
2012-04-27  8:54           ` Dong Aisheng
2012-04-27  8:47             ` Sascha Hauer
2012-04-27  9:13               ` Dong Aisheng
     [not found] ` <1335451227-27709-1-git-send-email-b29396-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2012-04-26 16:24   ` Stephen Warren [this message]
     [not found]     ` <4F9976AB.1020502-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-04-27  3:28       ` [PATCH v4 1/4] dt: add of_get_child_count helper function Dong Aisheng
     [not found]         ` <20120427032831.GE26070-Fb7DQEYuewWctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-04-27  3:36           ` [PATCH v5 1/1] " Dong Aisheng
2012-04-27 15:25             ` Stephen Warren
2012-05-01 23:05             ` Linus Walleij

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