[tip:perf/core] perf stat: Error out unsupported group leader immediately

Commit-ID: cb5ef60067c11cc8887122f6f168c21941c5d624 Gitweb: http://git.kernel.org/tip/cb5ef60067c11cc8887122f6f168c21941c5d624 Author: Kan Liang AuthorDate: Thu, 11 Jun 2015 02:32:40 -0400 Committer: Arnaldo Carvalho de Melo CommitDate: Thu, 11 Jun 2015 11:07:40 -0300 perf stat: Error

[tip:perf/core] perf stat: Error out unsupported group leader immediately

Commit-ID: cb5ef60067c11cc8887122f6f168c21941c5d624 Gitweb: http://git.kernel.org/tip/cb5ef60067c11cc8887122f6f168c21941c5d624 Author: Kan Liang kan.li...@intel.com AuthorDate: Thu, 11 Jun 2015 02:32:40 -0400 Committer: Arnaldo Carvalho de Melo a...@redhat.com CommitDate: Thu, 11 Jun