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authorQuentin Monnet <quentin.monnet@netronome.com>2019-08-15 15:32:15 +0100
committerAlexei Starovoitov <ast@kernel.org>2019-08-15 22:06:46 -0700
commit9def249dc8409ffc1f5a1d7195f1c462f2b49c07 (patch)
tree1f1e366fef86dfe9cd1619cd547ca5aa0e99157e /tools/bpf
parentdadb81d0afe732a7670f7c1bd287dada163a9f2f (diff)
downloadlinux-9def249dc8409ffc1f5a1d7195f1c462f2b49c07.tar.bz2
tools: bpftool: fix arguments for p_err() in do_event_pipe()
The last argument passed to some calls to the p_err() functions is not correct, it should be "*argv" instead of "**argv". This may lead to a segmentation fault error if CPU IDs or indices from the command line cannot be parsed correctly. Let's fix this. Fixes: f412eed9dfde ("tools: bpftool: add simple perf event output reader") Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/bpf')
-rw-r--r--tools/bpf/bpftool/map_perf_ring.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/bpf/bpftool/map_perf_ring.c b/tools/bpf/bpftool/map_perf_ring.c
index 3f108ab17797..4c5531d1a450 100644
--- a/tools/bpf/bpftool/map_perf_ring.c
+++ b/tools/bpf/bpftool/map_perf_ring.c
@@ -157,7 +157,7 @@ int do_event_pipe(int argc, char **argv)
NEXT_ARG();
ctx.cpu = strtoul(*argv, &endptr, 0);
if (*endptr) {
- p_err("can't parse %s as CPU ID", **argv);
+ p_err("can't parse %s as CPU ID", *argv);
goto err_close_map;
}
@@ -168,7 +168,7 @@ int do_event_pipe(int argc, char **argv)
NEXT_ARG();
ctx.idx = strtoul(*argv, &endptr, 0);
if (*endptr) {
- p_err("can't parse %s as index", **argv);
+ p_err("can't parse %s as index", *argv);
goto err_close_map;
}