On Fri, Oct 19, 2012 at 2:46 AM, <we...@cn.fujitsu.com> wrote: > From: Yasuaki Ishimatsu <isimatu.yasu...@jp.fujitsu.com> > > When calling unregister_node(), the function shows following message at > device_release(). > > "Device 'node2' does not have a release() function, it is broken and must > be fixed." > > The reason is node's device struct does not have a release() function. > > So the patch registers node_device_release() to the device's release() > function for suppressing the warning message. Additionally, the patch adds > memset() to initialize a node struct into register_node(). Because the node > struct is part of node_devices[] array and it cannot be freed by > node_device_release(). So if system reuses the node struct, it has a garbage. > > CC: David Rientjes <rient...@google.com> > CC: Jiang Liu <liu...@gmail.com> > Cc: Minchan Kim <minchan....@gmail.com> > CC: Andrew Morton <a...@linux-foundation.org> > CC: KOSAKI Motohiro <kosaki.motoh...@jp.fujitsu.com> > Signed-off-by: Yasuaki Ishimatsu <isimatu.yasu...@jp.fujitsu.com> > Signed-off-by: Wen Congyang <we...@cn.fujitsu.com>
I still think node array should be converted node pointer array and node_device_release() free memory as other typical drivers. However, this is acceptable as first step. Acked-by: KOSAKI Motohiro <kosaki.motoh...@jp.fujitsu.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
