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authorWang Nan <wangnan0@huawei.com>2015-09-06 07:13:17 +0000
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-09-21 18:01:17 -0300
commit854f736364c659046f066a98fed2fdb10a39577a (patch)
treeda2002faff38a45df4b5d21ba3df4803ba9dbbc2 /tools/build
parent0fb18553478dee5b3d8dc0af4f99a5288e81142f (diff)
perf tools: Don't assume that the parser returns non empty evsel list
Don't blindly retrieve and use a last element in the lists returned by parse_events__scanner(), as it may have collected no entries, i.e. return an empty list. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kaixu Xia <xiakaixu@huawei.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1441523623-152703-2-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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