perf record: Fix segfault with --no-mmap-pages
authorDavid Ahern <dsahern@gmail.com>
Tue, 12 Nov 2013 14:46:53 +0000 (07:46 -0700)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Tue, 12 Nov 2013 19:30:54 +0000 (16:30 -0300)
commit8973504be70b2986a2081eeff7d9a4210dec295d
treeac388c9ef74a7de7e21148a835f7b9028b46c62d
parentfd2eabaf16984bc75695e43f4b76e6f20ed4ea41
perf record: Fix segfault with --no-mmap-pages

Adrian reported a segfault when using --no-out-pages:

$ tools/perf/perf record -vv --no-out-pages uname
Segmentation fault (core dumped)

The same occurs with --no-mmap-pages. Fix by checking that str is
non-NULL before parsing it.

Signed-off-by: David Ahern <dsahern@gmail.com>
Reported-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1384267617-3446-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/evlist.c