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authorDavid Ahern <dsahern@gmail.com>2011-11-13 21:45:27 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-11-16 16:02:26 +0400
commit47fbe53bef3b219a365ebf3eca949d6cd4c5291c (patch)
treed6403822660bed73283d781ca848fca2d6535ff6 /tools
parent0e2a5f10fb550835e199a3b56a80ed88232188e9 (diff)
downloadlinux-47fbe53bef3b219a365ebf3eca949d6cd4c5291c.tar.xz
perf session: Fix crash with invalid CPU list
commit 5d67be9 added the option to specify a range of CPUs of interest, but does not catch an invalid CPU list: $ perf script -c foo Segmentation fault (core dumped) Cc: Anton Blanchard <anton@samba.org> Link: http://lkml.kernel.org/r/1321206327-5881-1-git-send-email-dsahern@gmail.com Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/session.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 85c1e6b76f0a..0f4555ce9063 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1333,6 +1333,10 @@ int perf_session__cpu_bitmap(struct perf_session *session,
}
map = cpu_map__new(cpu_list);
+ if (map == NULL) {
+ pr_err("Invalid cpu_list\n");
+ return -1;
+ }
for (i = 0; i < map->nr; i++) {
int cpu = map->map[i];