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-rw-r--r--tools/power/x86/intel-speed-select/isst-config.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index 582feb88eca3..7b98a4a52d9e 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -959,6 +959,10 @@ static void isst_print_extended_platform_info(void)
fprintf(outf, "Intel(R) SST-BF (feature base-freq) is not supported\n");
ret = isst_read_pm_config(i, &cp_state, &cp_cap);
+ if (ret) {
+ fprintf(outf, "Intel(R) SST-CP (feature core-power) status is unknown\n");
+ return;
+ }
if (cp_cap)
fprintf(outf, "Intel(R) SST-CP (feature core-power) is supported\n");
else