diff options
Diffstat (limited to 'tools/perf/arch/s390/util/header.c')
| -rw-r--r-- | tools/perf/arch/s390/util/header.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/tools/perf/arch/s390/util/header.c b/tools/perf/arch/s390/util/header.c index 163b92f33998..7933f6871c81 100644 --- a/tools/perf/arch/s390/util/header.c +++ b/tools/perf/arch/s390/util/header.c @@ -1,23 +1,22 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Implementation of get_cpuid(). * * Copyright IBM Corp. 2014, 2018 * Author(s): Alexander Yarygin <yarygin@linux.vnet.ibm.com> * Thomas Richter <tmricht@linux.vnet.ibm.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License (version 2 only) - * as published by the Free Software Foundation. */ #include <sys/types.h> +#include <errno.h> #include <unistd.h> #include <stdio.h> #include <string.h> -#include <ctype.h> +#include <linux/ctype.h> +#include <linux/kernel.h> +#include <linux/zalloc.h> #include "../../util/header.h" -#include "../../util/util.h" #define SYSINFO_MANU "Manufacturer:" #define SYSINFO_TYPE "Type:" @@ -56,7 +55,7 @@ int get_cpuid(char *buffer, size_t sz) sysinfo = fopen(SYSINFO, "r"); if (sysinfo == NULL) - return -1; + return errno; while ((read = getline(&line, &line_sz, sysinfo)) != -1) { if (!strncmp(line, SYSINFO_MANU, strlen(SYSINFO_MANU))) { @@ -91,7 +90,7 @@ int get_cpuid(char *buffer, size_t sz) /* Missing manufacturer, type or model information should not happen */ if (!manufacturer[0] || !type[0] || !model[0]) - return -1; + return EINVAL; /* * Scan /proc/service_levels and return the CPU-MF counter facility @@ -135,14 +134,14 @@ skip_sysinfo: else nbytes = snprintf(buffer, sz, "%s,%s,%s", manufacturer, type, model); - return (nbytes >= sz) ? -1 : 0; + return (nbytes >= sz) ? ENOBUFS : 0; } char *get_cpuid_str(struct perf_pmu *pmu __maybe_unused) { char *buf = malloc(128); - if (buf && get_cpuid(buf, 128) < 0) + if (buf && get_cpuid(buf, 128)) zfree(&buf); return buf; } |
