Commit 91ee03eb authored by Benjamin Berg's avatar Benjamin Berg
Browse files

device: Fix memory management of gallery passed to identify

We cannot make any assumptions about the passed GPtrArray. As such, we
must copy the content and grab our own reference for each of the prints.
parent 28ba6a0d
......@@ -1018,6 +1018,7 @@ fp_device_identify (FpDevice *device,
g_autoptr(GTask) task = NULL;
FpDevicePrivate *priv = fp_device_get_instance_private (device);
FpMatchData *data;
int i;
task = g_task_new (device, cancellable, callback, user_data);
if (g_task_return_error_if_cancelled (task))
......@@ -1042,7 +1043,13 @@ fp_device_identify (FpDevice *device,
maybe_cancel_on_cancelled (device, cancellable);
data = g_new0 (FpMatchData, 1);
data->gallery = g_ptr_array_ref (prints);
/* We cannot store the gallery directly, because the ptr array may not own
* a reference to each print. Also, the caller could in principle modify the
* GPtrArray afterwards.
*/
data->gallery = g_ptr_array_new_full (prints->len, g_object_unref);
for (i = 0; i < prints->len; i++)
g_ptr_array_add (data->gallery, g_object_ref (g_ptr_array_index (prints, i)));
data->match_cb = match_cb;
data->match_data = match_data;
data->match_destroy = match_destroy;
......
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