From: Quentin Monnet <quentin.monnet@netronome.com>
Date: Thu, 15 Aug 2019 15:32:15 +0100
Subject: tools: bpftool: fix arguments for p_err() in do_event_pipe()
Patch-mainline: v5.4-rc1
Git-commit: 9def249dc8409ffc1f5a1d7195f1c462f2b49c07
References: bsc#1155518

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>
Acked-by: Gary Lin <glin@suse.com>
---
 tools/bpf/bpftool/map_perf_ring.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- 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;
 			}