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Do not spin in a loop when /proc/timer_stats cannot be written

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Only set up the polling once the write has succeeded.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=100626
This commit is contained in:
Richard Hughes 2017-04-23 20:22:02 +01:00
parent eb6b1b62a2
commit 798588a480
1 changed files with 7 additions and 5 deletions
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12
src/up-wakeups.c
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@ -626,6 +626,13 @@ up_wakeups_timerstats_enable (UpWakeups *wakeups)
g_debug ("enabling timer stats");
/* enable timer stats */
file = fopen (UP_WAKEUPS_SOURCE_USERSPACE, "w");
if (file == NULL)
return FALSE;
fprintf (file, "1\n");
fclose (file);
/* setup polls */
wakeups->priv->poll_kernel_id =
g_timeout_add_seconds (UP_WAKEUPS_POLL_INTERVAL_KERNEL,
@ -637,11 +644,6 @@ up_wakeups_timerstats_enable (UpWakeups *wakeups)
(GSourceFunc) up_wakeups_poll_userspace_cb, wakeups);
g_source_set_name_by_id (wakeups->priv->poll_userspace_id, "[upower] up_wakeups_poll_userspace_cb");
file = fopen (UP_WAKEUPS_SOURCE_USERSPACE, "w");
if (file == NULL)
return FALSE;
fprintf (file, "1\n");
fclose (file);
wakeups->priv->polling_enabled = TRUE;
return TRUE;
}