gdm/SOURCES/0006-manager-gracefully-handle-the-case-of-no-session-for.patch

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2020-11-03 11:57:05 +00:00
From 454a3daad5148a8ef30cb298af82aa0713e73af7 Mon Sep 17 00:00:00 2001
From: Lubomir Rintel <lkundrak@v3.sk>
Date: Mon, 18 Jun 2018 12:33:51 +0200
Subject: [PATCH 06/51] manager: gracefully handle the case of no session for
login window
get_login_window_session_id() will return TRUE with session_id=NULL when
there's no session. This restults in an assertion failure on
constructing the o.fd.login1.Manager.ActivateSessionOnSeat() arguments:
GLib: g_variant_new_string: assertion 'string != NULL' failed
---
daemon/gdm-manager.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/daemon/gdm-manager.c b/daemon/gdm-manager.c
index 71f55ec65..7a5554e9d 100644
--- a/daemon/gdm-manager.c
+++ b/daemon/gdm-manager.c
@@ -1448,62 +1448,64 @@ get_login_window_session_id (const char *seat_id,
}
free (service_id);
}
*session_id = NULL;
ret = FALSE;
out:
if (sessions) {
for (i = 0; sessions[i]; i ++) {
free (sessions[i]);
}
free (sessions);
}
return ret;
}
static void
activate_login_window_session_on_seat (GdmManager *self,
const char *seat_id)
{
char *session_id;
if (!get_login_window_session_id (seat_id, &session_id)) {
return;
}
- activate_session_id (self, seat_id, session_id);
- g_free (session_id);
+ if (session_id) {
+ activate_session_id (self, seat_id, session_id);
+ g_free (session_id);
+ }
}
static void
maybe_activate_other_session (GdmManager *self,
GdmDisplay *old_display)
{
char *seat_id = NULL;
char *session_id;
int ret;
g_object_get (G_OBJECT (old_display),
"seat-id", &seat_id,
NULL);
ret = sd_seat_get_active (seat_id, &session_id, NULL);
if (ret == 0) {
GdmDisplay *display;
display = gdm_display_store_find (self->priv->display_store,
lookup_by_session_id,
(gpointer) session_id);
if (display == NULL) {
activate_login_window_session_on_seat (self, seat_id);
}
}
g_free (seat_id);
}
--
2.27.0