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

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Date:	Fri, 30 Nov 2012 11:37:25 +0800
From:	Roger Yang <netyrj@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Function show_uevent@...vers/base/core.c

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;

        ...
 }
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