[PATCH 1/8] cpu: cpufreq: cpufreq and cpuidle dirs confusing cpuN parsing

[Keng-Yu Lin]

On Mon, Jul 23, 2012 at 9:02 PM, Colin King <colin.king at canonical.com> wrote:
> From: Colin Ian King <colin.king at canonical.com>
>
> We need to only exercise CPUs in the path /sys/devices/system/cpu
> when the directory matches cpuN (where N is a number).  Add an
> extra check so we don't get fooled by cpufreq and cpuidle dir names
> in /sys/devices/system/cpu
>
> Signed-off-by: Colin Ian King <colin.king at canonical.com>
> ---
>  src/cpu/cpufreq/cpufreq.c |    7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/src/cpu/cpufreq/cpufreq.c b/src/cpu/cpufreq/cpufreq.c
> index d2c5281..a141812 100644
> --- a/src/cpu/cpufreq/cpufreq.c
> +++ b/src/cpu/cpufreq/cpufreq.c
> @@ -36,6 +36,7 @@
>  #include <sched.h>
>  #include <time.h>
>  #include <math.h>
> +#include <ctype.h>
>
>  #define FWTS_CPU_PATH  "/sys/devices/system/cpu"
>
> @@ -626,7 +627,7 @@ static int cpufreq_test1(fwts_framework *fw)
>         }
>
>         while ((entry = readdir(dir)) != NULL) {
> -               if (entry && strlen(entry->d_name)>3) {
> +               if (entry && strlen(entry->d_name)>3 && isdigit(entry->d_name[3])) {
>                         cpu = strtoul(entry->d_name+3,NULL,10);
>                         lowest_speed(fw, cpu);
>                 }
> @@ -636,7 +637,7 @@ static int cpufreq_test1(fwts_framework *fw)
>         /* then do the benchmark */
>
>         while ((entry = readdir(dir)) != NULL) {
> -               if (entry && strlen(entry->d_name)>3) {
> +               if (entry && strlen(entry->d_name)>3 && isdigit(entry->d_name[3])) {
>                         cpu = strtoul(entry->d_name+3,NULL,10);
>                         do_cpu(fw, cpu);
>                         lowest_speed(fw, cpu);
> @@ -649,7 +650,7 @@ static int cpufreq_test1(fwts_framework *fw)
>         /* set everything back to the highest speed again */
>
>         while ((entry = readdir(dir)) != NULL) {
> -               if (entry && strlen(entry->d_name)>3) {
> +               if (entry && strlen(entry->d_name)>3 && isdigit(entry->d_name[3])) {
>                         cpu = strtoul(entry->d_name+3,NULL,10);
>                         highest_speed(fw, cpu);
>                 }
> --
> 1.7.10.4
>
Acked-by: Keng-Yu Lin <kengyu at canonical.com>