linux-kernel - Re: Function show_uevent@...vers/base/core.c

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Date:	Thu, 29 Nov 2012 21:25:49 -0800
From:	anish singh <anish198519851985@...il.com>
To:	Roger Yang <netyrj@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Function show_uevent@...vers/base/core.c

On Thu, Nov 29, 2012 at 7:37 PM, Roger Yang <netyrj@...il.com> wrote:
> drivers/base/core.c
>
> static ssize_t show_uevent(struct device *dev, struct device_attribute *attr,
>                             char *buf)
>  {
>          ....
>
>         kset = top_kobj->kset;
>          if (!kset->uevent_ops || !kset->uevent_ops->uevent)
>                  goto out;
>
>         /* respect filter */
>  -       if (kset->uevent_ops && kset->uevent_ops->filter)
>  +       if (kset->uevent_ops->filter)
>                  if (!kset->uevent_ops->filter(kset, &dev->kobj))
>                          goto out;
>
>         env = kzalloc(sizeof(struct kobj_uevent_env), GFP_KERNEL);
>          if (!env)
>                  return -ENOMEM;
what is the problem?
>
>         ...
>  }
> --
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