perf/x86/intel/uncore: Simplify error rollback
authorThomas Gleixner <tglx@linutronix.de>
Mon, 22 Feb 2016 22:19:09 +0000 (22:19 +0000)
committerIngo Molnar <mingo@kernel.org>
Mon, 29 Feb 2016 08:35:13 +0000 (09:35 +0100)
commitffeda003803213a8d0babefdd6a95fe424884c14
tree3d9b81f36714248e1e7c27a943076f193157a313
parent3ccca9eca67ec68461a5266832d02aee538599b2
perf/x86/intel/uncore: Simplify error rollback

No point in doing partial rollbacks. Robustify uncore_exit_type() so it does
not dereference type->pmus unconditionally and remove all the partial rollback
hackery.

Preparatory patch for proper error handling.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andi Kleen <andi.kleen@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Harish Chegondi <harish.chegondi@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: linux-kernel@vger.kernel.org
Link: http://lkml.kernel.org/r/20160222221010.751077467@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/events/intel/uncore.c