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apps/examples/alarm: ioctl call was clobbering file descriptor.

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This commit is contained in:
Gregory Nutt 2016-06-02 06:58:45 -06:00
parent 7fff9a000a
commit 59973da9ca
1 changed files with 6 additions and 2 deletions
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8
examples/alarm/alarm_main.c
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@ -279,6 +279,7 @@ int alarm_main(int argc, FAR char *argv[])
/* Open the RTC driver */
printf("Opening %s\n", CONFIG_EXAMPLES_ALARM_DEVPATH);
fd = open(CONFIG_EXAMPLES_ALARM_DEVPATH, O_WRONLY);
if (fd < 0)
{
@ -297,17 +298,20 @@ int alarm_main(int argc, FAR char *argv[])
setrel.sigvalue.sival_int = alarmid;
fd = ioctl(fd, RTC_SET_RELATIVE, (unsigned long)((uintptr_t)&setrel));
if (fd < 0)
ret = ioctl(fd, RTC_SET_RELATIVE, (unsigned long)((uintptr_t)&setrel));
if (ret < 0)
{
int errcode = errno;
fprintf(stderr, "ERROR: RTC_SET_RELATIVE ioctl failed: %d\n",
errcode);
(void)close(fd);
return EXIT_FAILURE;
}
printf("Alarm %d set in %lu seconds\n", alarmid, seconds);
(void)close(fd);
return EXIT_SUCCESS;
}