1 files changed, 2 insertions, 2 deletions

diff --git a/tools/perf/arch/x86/util/header.c b/tools/perf/arch/x86/util/header.c
index 33027c5e6f92..fb0d71afee8b 100644
--- a/tools/perf/arch/x86/util/header.c
+++ b/tools/perf/arch/x86/util/header.c
@@ -66,11 +66,11 @@ get_cpuid(char *buffer, size_t sz)
 }
 
 char *
-get_cpuid_str(void)
+get_cpuid_str(struct perf_pmu *pmu __maybe_unused)
 {
         char *buf = malloc(128);
 
-        if (__get_cpuid(buf, 128, "%s-%u-%X$") < 0) {
+        if (buf && __get_cpuid(buf, 128, "%s-%u-%X$") < 0) {
                 free(buf);
                 return NULL;
         }