Re: [PATCH v3 4/6] selftests: watchdog: point out ioctl() failures

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Hi Eugeniu,

On 06/03/2017 02:14 PM, Eugeniu Rosca wrote:
> Report the failure of WDIOC_SETOPTIONS/WDIOC_SETTIMEOUT ioctls.
> 
> Signed-off-by: Eugeniu Rosca <erosca@xxxxxxxxxxxxxx>
> ---
>  tools/testing/selftests/watchdog/watchdog-test.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c
> index 5cfa88c73095..c1c9a3bb9ec7 100644
> --- a/tools/testing/selftests/watchdog/watchdog-test.c
> +++ b/tools/testing/selftests/watchdog/watchdog-test.c
> @@ -94,12 +94,16 @@ int main(int argc, char *argv[])
>  			ret = ioctl(fd, WDIOC_SETOPTIONS, &flags);
>  			if (!ret)
>  				printf("Watchdog card disabled.\n");
> +			else
> +				printf("Failed to disable watchdog card.\n");

Could you please add ioctl ret value to the error message.

>  			break;
>  		case 'e':
>  			flags = WDIOS_ENABLECARD;
>  			ret = ioctl(fd, WDIOC_SETOPTIONS, &flags);
>  			if (!ret)
>  				printf("Watchdog card enabled.\n");
> +			else
> +				printf("Failed to enable watchdog card.\n");
>  			break;
>  		case 'p':
>  			ping_rate = strtoul(optarg, NULL, 0);
> @@ -110,6 +114,8 @@ int main(int argc, char *argv[])
>  			ret = ioctl(fd, WDIOC_SETTIMEOUT, &flags);
>  			if (!ret)
>  				printf("Watchdog timeout set to %u seconds.\n", flags);
> +			else
> +				printf("Failed to set timeout to %u seconds.\n", flags);

Could you please add ioctl ret value to the error message.

>  			break;
>  		default:
>  			usage(argv[0]);
> 

thanks,
-- Shuah
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