Re: [PATCH 1/3] coresight: fix kernel panic caused by invalid CPU

2017-01-25 Thread Greg KH
On Mon, Jan 23, 2017 at 10:41:22AM -0700, Mathieu Poirier wrote: > From: Wang Nan > > Commit d52c9750f150 ("coresight: reset "enable_sink" flag when need be") > caused a kernel panic because of the using of an invalid value: after > 'for_each_cpu(cpu, mask)', value of local

Re: [PATCH 1/3] coresight: fix kernel panic caused by invalid CPU

2017-01-25 Thread Greg KH
On Mon, Jan 23, 2017 at 10:41:22AM -0700, Mathieu Poirier wrote: > From: Wang Nan > > Commit d52c9750f150 ("coresight: reset "enable_sink" flag when need be") > caused a kernel panic because of the using of an invalid value: after > 'for_each_cpu(cpu, mask)', value of local variable 'cpu' become

[PATCH 1/3] coresight: fix kernel panic caused by invalid CPU

2017-01-23 Thread Mathieu Poirier
From: Wang Nan Commit d52c9750f150 ("coresight: reset "enable_sink" flag when need be") caused a kernel panic because of the using of an invalid value: after 'for_each_cpu(cpu, mask)', value of local variable 'cpu' become invalid, causes following 'cpu_to_node' access

[PATCH 1/3] coresight: fix kernel panic caused by invalid CPU

2017-01-23 Thread Mathieu Poirier
From: Wang Nan Commit d52c9750f150 ("coresight: reset "enable_sink" flag when need be") caused a kernel panic because of the using of an invalid value: after 'for_each_cpu(cpu, mask)', value of local variable 'cpu' become invalid, causes following 'cpu_to_node' access invalid memory area. This