libfprint/SOURCES/0093-image-device-Print-war...

57 lines
1.9 KiB
Diff

From dfef13a3eb14ded653a0f1226eb5903e0b81b772 Mon Sep 17 00:00:00 2001
From: Benjamin Berg <bberg@redhat.com>
Date: Wed, 4 Dec 2019 19:54:07 +0100
Subject: [PATCH 093/181] image-device: Print warning for incorrect
deactivation
Drivers may not handle deactivation properly when they are awaiting a
finger. This should be prevented by the internal FpImageDevice state
machine.
---
libfprint/fp-image-device.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/libfprint/fp-image-device.c b/libfprint/fp-image-device.c
index 26c3cb0..252f414 100644
--- a/libfprint/fp-image-device.c
+++ b/libfprint/fp-image-device.c
@@ -50,6 +50,7 @@ typedef struct
{
FpImageDeviceState state;
gboolean active;
+ gboolean cancelling;
gboolean enroll_await_on_pending;
gint enroll_stage;
@@ -140,6 +141,9 @@ fp_image_device_deactivate (FpDevice *device)
fp_dbg ("Already deactivated, ignoring request.");
return;
}
+ if (!priv->cancelling && priv->state == FP_IMAGE_DEVICE_STATE_AWAIT_FINGER_ON)
+ g_warning ("Deactivating image device while waiting for finger, this should not happen.");
+
priv->state = FP_IMAGE_DEVICE_STATE_INACTIVE;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_FPI_STATE]);
@@ -203,6 +207,7 @@ static void
fp_image_device_cancel_action (FpDevice *device)
{
FpImageDevice *self = FP_IMAGE_DEVICE (device);
+ FpImageDevicePrivate *priv = fp_image_device_get_instance_private (self);
FpDeviceAction action;
action = fpi_device_get_current_action (device);
@@ -214,7 +219,9 @@ fp_image_device_cancel_action (FpDevice *device)
action == FP_DEVICE_ACTION_IDENTIFY ||
action == FP_DEVICE_ACTION_CAPTURE)
{
+ priv->cancelling = TRUE;
fp_image_device_deactivate (FP_DEVICE (self));
+ priv->cancelling = FALSE;
/* XXX: Some nicer way of doing this would be good. */
fpi_device_action_error (FP_DEVICE (self),
--
2.24.1