btf_find_struct_member() might return NULL or an error via the ERR_PTR() macro. However, its caller in parse_btf_field() only checks for the NULL condition. Fix this by using IS_ERR() and returning the error up the stack.
Fixes: c440adfbe3025 ("tracing/probes: Support BTF based data structure field access") Signed-off-by: Carlos López <clo...@suse.de> --- kernel/trace/trace_probe.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c index 5e263c141574..5417e9712157 100644 --- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -554,6 +554,8 @@ static int parse_btf_field(char *fieldname, const struct btf_type *type, anon_offs = 0; field = btf_find_struct_member(ctx->btf, type, fieldname, &anon_offs); + if (IS_ERR(field)) + return PTR_ERR(field); if (!field) { trace_probe_log_err(ctx->offset, NO_BTF_FIELD); return -ENOENT; -- 2.35.3