Commit-ID: 8973504be70b2986a2081eeff7d9a4210dec295d Gitweb: http://git.kernel.org/tip/8973504be70b2986a2081eeff7d9a4210dec295d Author: David Ahern <[email protected]> AuthorDate: Tue, 12 Nov 2013 07:46:53 -0700 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Tue, 12 Nov 2013 16:30:54 -0300
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 <[email protected]> Reported-by: Adrian Hunter <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/util/evlist.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 99dc58e..3960560 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -719,6 +719,9 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str, { .tag = 0 }, }; + if (str == NULL) + return -1; + val = parse_tag_value(str, tags); if (val != (unsigned long) -1) { /* we got file size value */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
