Re: [PATCH 4/4] Replace printf with fprintf for all the output functions

 		     data->deepest_cstate, data->last_cstate,
 		     data->wake_reason);
 	fprint_sample_pt_spacing(len, fp);

@@ -1299,10 +1299,10 @@ static void fprint_sample_synth_cbr(struct perf_sample *sample, FILE *fp)
 		return;
 
 	freq = (le32_to_cpu(data->freq) + 500) / 1000;
-	len = printf(" cbr: %2u freq: %4u MHz ", data->cbr, freq);
+	len = fprintf(fp, " cbr: %2u freq: %4u MHz ", data->cbr, freq);
 	if (data->max_nonturbo) {
 		percent = (5 + (1000 * data->cbr) / data->max_nonturbo) / 10;
-		len += printf("(%3u%%) ", percent);
+		len += fprintf(fp, "(%3u%%) ", percent);
 	}
 	fprint_sample_pt_spacing(len, fp);
 }

@@ -1377,7 +1377,7 @@ static size_t data_src__fprintf(u64 data_src, FILE *fp)
 	if (maxlen < len)
 		maxlen = len;
 
-	return printf("%-*s", maxlen, out);
+	return fprintf(fp, "%-*s", maxlen, out);