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-rw-r--r--tools/lib/bpf/libbpf.c2
-rw-r--r--tools/lib/subcmd/help.c18
2 files changed, 16 insertions, 4 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 10f15a3e3..e2014b125 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -4157,6 +4157,8 @@ bpf_object__collect_prog_relos(struct bpf_object *obj, Elf64_Shdr *shdr, Elf_Dat
scn = elf_sec_by_idx(obj, sec_idx);
scn_data = elf_sec_data(obj, scn);
+ if (!scn_data)
+ return -LIBBPF_ERRNO__FORMAT;
relo_sec_name = elf_sec_str(obj, shdr->sh_name);
sec_name = elf_sec_name(obj, scn);
diff --git a/tools/lib/subcmd/help.c b/tools/lib/subcmd/help.c
index bf02d62a3..42f57b640 100644
--- a/tools/lib/subcmd/help.c
+++ b/tools/lib/subcmd/help.c
@@ -50,11 +50,21 @@ void uniq(struct cmdnames *cmds)
if (!cmds->cnt)
return;
- for (i = j = 1; i < cmds->cnt; i++)
- if (strcmp(cmds->names[i]->name, cmds->names[i-1]->name))
- cmds->names[j++] = cmds->names[i];
-
+ for (i = 1; i < cmds->cnt; i++) {
+ if (!strcmp(cmds->names[i]->name, cmds->names[i-1]->name))
+ zfree(&cmds->names[i - 1]);
+ }
+ for (i = 0, j = 0; i < cmds->cnt; i++) {
+ if (cmds->names[i]) {
+ if (i == j)
+ j++;
+ else
+ cmds->names[j++] = cmds->names[i];
+ }
+ }
cmds->cnt = j;
+ while (j < i)
+ cmds->names[j++] = NULL;
}
void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes)