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Fix screensaver unlock for some users

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pam_fprintd is very careful to use its own main loop context (as it
should) to prevent getting in the way of the gnome-screensaver.

Unfortunately, there's a small bug in its logic where it ends up
removing a random file descriptor from the default context. In the
bug report that file descriptor is really important.  It's what
tells gnome-screensaver when to drop the dialog.

The patch is as simple as:

-   g_source_remove (timeout_id);
+   g_source_destroy (source);

(g_source_remove always operates on the default context)

https://bugzilla.redhat.com/show_bug.cgi?id=614573
This commit is contained in:
Ray Strode
2010-08-16 19:35:57 +01:00
committed by Bastien Nocera
parent 4f30f39699
commit 7544102f2e
1 changed files with 3 additions and 4 deletions
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7
pam/pam_fprintd.c
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@ -298,11 +298,10 @@ static int do_verify(GMainLoop *loop, pam_handle_t *pamh, DBusGProxy *dev)
while (ret == PAM_AUTH_ERR && data->max_tries > 0) {
GSource *source;
guint timeout_id;
/* Set up the timeout on our non-default context */
source = g_timeout_source_new_seconds (TIMEOUT);
timeout_id = g_source_attach (source, g_main_loop_get_context (loop));
g_source_attach (source, g_main_loop_get_context (loop));
g_source_set_callback (source, verify_timeout_cb, data, NULL);
data->timed_out = FALSE;
@ -311,14 +310,14 @@ static int do_verify(GMainLoop *loop, pam_handle_t *pamh, DBusGProxy *dev)
D(pamh, "VerifyStart failed: %s", error->message);
g_error_free (error);
g_source_remove (timeout_id);
g_source_destroy (source);
g_source_unref (source);
break;
}
g_main_loop_run (loop);
g_source_remove (timeout_id);
g_source_destroy (source);
g_source_unref (source);
/* Ignore errors from VerifyStop */