perf tools: Fix parse_events_error dereferences
authorAdrian Hunter <adrian.hunter@intel.com>
Tue, 19 May 2015 13:05:44 +0000 (16:05 +0300)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Wed, 27 May 2015 15:21:43 +0000 (12:21 -0300)
commita6ced2be06c302402c52dedba97d169d22cce99c
treee03776dd304df329ea7f376028e7a44bf38f6796
parentbb78ce7d0598fb277290f8ee2443b8f4e0eb7cb2
perf tools: Fix parse_events_error dereferences

Parse errors can be reported in struct parse_events_error but the
pointer passed is optional and can be NULL.  Ensure it is not NULL
before dereferencing it.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Link: http://lkml.kernel.org/r/1432040746-1755-4-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/parse-events.c
tools/perf/util/parse-events.y