perf tools: Random cleanups

[Frederic Weisbecker]

Hi,

Just a bunch of non critical cleanups for comm and callchains. Based on latest acme:perf/core

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
	perf/core-cleanups-for-acme

Thanks,
	Frederic
---

Frederic Weisbecker (3):
      perf tools: Do proper comm override error handling
      perf tools: Spare double comparison of callchain first entry
      perf tools: Remove unnecessary callchain cursor state restore on unmatch


 tools/perf/util/callchain.c | 23 ++++++++++-------------
 tools/perf/util/comm.c      | 19 ++++++++++---------
 tools/perf/util/comm.h      |  2 +-
 tools/perf/util/thread.c    |  5 ++++-
 4 files changed, 25 insertions(+), 24 deletions(-)
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