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Message-ID: <4F5F4197.4070605@gmail.com>
Date: Tue, 13 Mar 2012 07:46:15 -0500
From: Rob Herring <robherring2@...il.com>
To: Dong Aisheng <b29396@...escale.com>
CC: devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
rob.herring@...xeda.com
Subject: Re: [PATCH 1/1] of: add NULL parameter check for of_device_is_available
On 03/13/2012 06:40 AM, Dong Aisheng wrote:
> From: Dong Aisheng <dong.aisheng@...aro.org>
>
> This function will return 1 even the device node passed in
> is NULL which is a little error-prone.
> Change to return 0 if the device node passed in is NULL.
>
> Signed-off-by: Dong Aisheng <dong.aisheng@...aro.org>
Applied.
Rob
> ---
> drivers/of/base.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/of/base.c b/drivers/of/base.c
> index 133908a..b9347d8 100644
> --- a/drivers/of/base.c
> +++ b/drivers/of/base.c
> @@ -280,6 +280,9 @@ int of_device_is_available(const struct device_node *device)
> const char *status;
> int statlen;
>
> + if (device == NULL)
> + return 0;
> +
> status = of_get_property(device, "status", &statlen);
> if (status == NULL)
> return 1;
--
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