Re: [PATCHv2 2/4] coresight: tmc-etf: Fix NULL ptr dereference in tmc_enable_etf_sink_perf()
From: Peter Zijlstra <peterz@infradead.org>
Date: 2020-10-23 09:41:28
Also in:
linux-arm-msm, lkml
From: Peter Zijlstra <peterz@infradead.org>
Date: 2020-10-23 09:41:28
Also in:
linux-arm-msm, lkml
On Fri, Oct 23, 2020 at 09:49:53AM +0100, Suzuki Poulose wrote:
On 10/23/20 8:39 AM, Peter Zijlstra wrote:
quoted
So then I don't understand the !->owner issue, that only happens when the task dies, which cannot be concurrent with event creation. Are youPart of the patch from Sai, fixes this by avoiding the dereferencing after event creation (by caching it). But the kernel events needs fixing.
I'm fundamentally failing here. Creating a link to the sink is strictly event-creation time. Why would you ever need it again later? Later you already have the sink setup. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel