diff --git a/tools/power/cpupower/bench/parse.c b/tools/power/cpupower/bench/parse.c
index 9ba8a44ad2a7..84caee38418f 100644
--- a/tools/power/cpupower/bench/parse.c
+++ b/tools/power/cpupower/bench/parse.c
@@ -145,7 +145,7 @@ struct config *prepare_default_config()
 	config->cpu = 0;
 	config->prio = SCHED_HIGH;
 	config->verbose = 0;
-	strncpy(config->governor, "ondemand", 8);
+	strncpy(config->governor, "ondemand", sizeof(config->governor));
 
 	config->output = stdout;
 
diff --git a/tools/power/cpupower/utils/cpufreq-info.c b/tools/power/cpupower/utils/cpufreq-info.c
index df43cd45d810..ccd08dd00996 100644
--- a/tools/power/cpupower/utils/cpufreq-info.c
+++ b/tools/power/cpupower/utils/cpufreq-info.c
@@ -200,6 +200,8 @@ static int get_boost_mode(unsigned int cpu)
 		printf(_("    Boost States: %d\n"), b_states);
 		printf(_("    Total States: %d\n"), pstate_no);
 		for (i = 0; i < pstate_no; i++) {
+			if (!pstates[i])
+				continue;
 			if (i < b_states)
 				printf(_("    Pstate-Pb%d: %luMHz (boost state)"
 					 "\n"), i, pstates[i]);
diff --git a/tools/power/cpupower/utils/helpers/amd.c b/tools/power/cpupower/utils/helpers/amd.c
index bb41cdd0df6b..9607ada5b29a 100644
--- a/tools/power/cpupower/utils/helpers/amd.c
+++ b/tools/power/cpupower/utils/helpers/amd.c
@@ -33,7 +33,7 @@ union msr_pstate {
 		unsigned vid:8;
 		unsigned iddval:8;
 		unsigned idddiv:2;
-		unsigned res1:30;
+		unsigned res1:31;
 		unsigned en:1;
 	} fam17h_bits;
 	unsigned long long val;
@@ -119,6 +119,11 @@ int decode_pstates(unsigned int cpu, unsigned int cpu_family,
 		}
 		if (read_msr(cpu, MSR_AMD_PSTATE + i, &pstate.val))
 			return -1;
+		if ((cpu_family == 0x17) && (!pstate.fam17h_bits.en))
+			continue;
+		else if (!pstate.bits.en)
+			continue;
+
 		pstates[i] = get_cof(cpu_family, pstate);
 	}
 	*no = i;