1 files changed, 2 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/power6-pmu.c b/arch/powerpc/kernel/power6-pmu.c
index 09ae5bf5bda7..fa21890531da 100644
--- a/arch/powerpc/kernel/power6-pmu.c
+++ b/arch/powerpc/kernel/power6-pmu.c
@@ -537,7 +537,8 @@ static struct power_pmu power6_pmu = {
 
 static int init_power6_pmu(void)
 {
-        if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power6"))
+        if (!cur_cpu_spec->oprofile_cpu_type ||
+            strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power6"))
                 return -ENODEV;
 
         return register_power_pmu(&power6_pmu);