[PATCH 8/8] tools/power/x86/intel-speed-select: Output success/failed for command output

[Prarit Bhargava]

Command output has confusing data, returning "0" on success.  For example

|# ./intel-speed-select -c 14 turbo-freq enable
Intel(R) Speed Select Technology
Executing on CPU model:106[0x6a]
 package-1
   die-0
     cpu-14
       turbo-freq
         enable:0

To avoid confusion change the command output to 'success' or 'failed'.

Signed-off-by: Prarit Bhargava <pra...@redhat.com>
Cc: Srinivas Pandruvada <srinivas.pandruv...@linux.intel.com>
Cc: David Arcari <darc...@redhat.com>
Cc: linux-kernel@vger.kernel.org
---
 tools/power/x86/intel-speed-select/isst-display.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/power/x86/intel-speed-select/isst-display.c 
b/tools/power/x86/intel-speed-select/isst-display.c
index 890a01bfee4b..8500cf2997a6 100644
--- a/tools/power/x86/intel-speed-select/isst-display.c
+++ b/tools/power/x86/intel-speed-select/isst-display.c
@@ -519,7 +519,10 @@ void isst_display_result(int cpu, FILE *outf, char 
*feature, char *cmd,
        snprintf(header, sizeof(header), "%s", feature);
        format_and_print(outf, 4, header, NULL);
        snprintf(header, sizeof(header), "%s", cmd);
-       snprintf(value, sizeof(value), "%d", result);
+       if (!result)
+               snprintf(value, sizeof(value), "success");
+       else
+               snprintf(value, sizeof(value), "failed(error %d)", result);
        format_and_print(outf, 5, header, value);
 
        format_and_print(outf, 1, NULL, NULL);
-- 
2.21.0