> -----Original Message----- > From: Wang, Xiaoming > Sent: Saturday, November 02, 2013 6:48 AM > To: [email protected]; [email protected]; > [email protected] > Cc: Liu, Chuansheng; Zhang, Dongxing; Wang, Xiaoming > Subject: [PATCH] [extcon]:remove freed groups caused the panic or warning in > unregister flow > > (edev->extcon_dev_type.groups) has been freed before device_unregister. > extcon_dev_unregister -> kfree(edev->extcon_dev_type.groups) > then device_unregister -> device_del -> device_remove_attrs > -> device_remove_groups(dev, type->groups); > panic because type->groups has been freed. > This patch fix the panic that using the freed memory.
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