diff options
Diffstat (limited to 'tools/power/x86/turbostat/turbostat.c')
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.c | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index f7b5d6f83d28..de634c8228b4 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -1175,6 +1175,19 @@ void free_all_buffers(void) } /* + * Open a file, and exit on failure + */ +FILE *fopen_or_die(const char *path, const char *mode) +{ + FILE *filep = fopen(path, "r"); + if (!filep) { + perror(path); + exit(1); + } + return filep; +} + +/* * Parse a file containing a single int. */ int parse_int_file(const char *fmt, ...) @@ -1187,11 +1200,7 @@ int parse_int_file(const char *fmt, ...) va_start(args, fmt); vsnprintf(path, sizeof(path), fmt, args); va_end(args); - filep = fopen(path, "r"); - if (!filep) { - perror(path); - exit(1); - } + filep = fopen_or_die(path, "r"); if (fscanf(filep, "%d", &value) != 1) { perror(path); exit(1); @@ -1237,11 +1246,7 @@ int get_num_ht_siblings(int cpu) char character; sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); - filep = fopen(path, "r"); - if (filep == NULL) { - perror(path); - exit(1); - } + filep = fopen_or_die(path, "r"); /* * file format: * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4) @@ -1311,11 +1316,7 @@ int for_all_proc_cpus(int (func)(int)) int cpu_num; int retval; - fp = fopen(proc_stat, "r"); - if (fp == NULL) { - perror(proc_stat); - exit(1); - } + fp = fopen_or_die(proc_stat, "r"); retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n"); if (retval != 0) { |