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device: Always use auto-pointers

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Remove manual memory management when possible, using new GLib facilities

In a few cases, avoid creating a temporary GError instead.
This commit is contained in:
Marco Trevisan (Treviño)
2020-01-29 22:14:36 +01:00
committed by Benjamin Berg
parent e1c2698807
commit 1ae0f4926d
1 changed files with 26 additions and 35 deletions
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55
src/device.c
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@ -489,9 +489,9 @@ _fprint_device_check_polkit_for_action (FprintDevice *rdev,
{
FprintDevicePrivate *priv = fprint_device_get_instance_private(rdev);
const char *sender;
PolkitSubject *subject;
PolkitAuthorizationResult *result;
GError *_error = NULL;
g_autoptr(GError) _error = NULL;
g_autoptr(PolkitAuthorizationResult) result = NULL;
g_autoptr(PolkitSubject) subject = NULL;
/* Check that caller is privileged */
sender = g_dbus_method_invocation_get_sender (invocation);
@ -503,13 +503,10 @@ _fprint_device_check_polkit_for_action (FprintDevice *rdev,
NULL,
POLKIT_CHECK_AUTHORIZATION_FLAGS_ALLOW_USER_INTERACTION,
NULL, &_error);
g_object_unref (subject);
if (result == NULL) {
g_set_error (error, FPRINT_ERROR,
FPRINT_ERROR_PERMISSION_DENIED,
"Not Authorized: %s", _error->message);
g_error_free (_error);
return FALSE;
}
@ -517,12 +514,9 @@ _fprint_device_check_polkit_for_action (FprintDevice *rdev,
g_set_error (error, FPRINT_ERROR,
FPRINT_ERROR_PERMISSION_DENIED,
"Not Authorized: %s", action);
g_object_unref (result);
return FALSE;
}
g_object_unref (result);
return TRUE;
}
@ -1028,7 +1022,7 @@ static gboolean fprint_device_verify_start (FprintDBusDevice *dbus_dev,
}
if (finger_num == -1) {
GSList *prints;
g_autoptr(GSList) prints = NULL;
prints = store.discover_prints(priv->dev, session->username);
if (prints == NULL) {
@ -1053,7 +1047,6 @@ static gboolean fprint_device_verify_start (FprintDBusDevice *dbus_dev,
} else {
finger_num = GPOINTER_TO_INT (prints->data);
}
g_slist_free(prints);
}
if (fp_device_supports_identify (priv->dev) && finger_num == -1) {
@ -1110,7 +1103,7 @@ static gboolean fprint_device_verify_stop (FprintDBusDevice *dbus_dev,
g_autoptr(SessionData) session = NULL;
FprintDevice *rdev = FPRINT_DEVICE (dbus_dev);
FprintDevicePrivate *priv = fprint_device_get_instance_private(rdev);
GError *error = NULL;
g_autoptr(GError) error = NULL;
if (!_fprint_device_check_claimed (rdev, invocation, STATE_CLAIMED, &error)) {
g_dbus_method_invocation_return_gerror (invocation, error);
@ -1118,16 +1111,16 @@ static gboolean fprint_device_verify_stop (FprintDBusDevice *dbus_dev,
}
if (priv->current_action == ACTION_NONE) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_ACTION_IN_PROGRESS,
g_dbus_method_invocation_return_error_literal (invocation,
FPRINT_ERROR,
FPRINT_ERROR_NO_ACTION_IN_PROGRESS,
"No verification in progress");
g_dbus_method_invocation_return_gerror (invocation, error);
g_error_free (error);
return TRUE;
} else if (priv->current_action == ACTION_ENROLL) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_ALREADY_IN_USE,
g_dbus_method_invocation_return_error_literal (invocation,
FPRINT_ERROR,
FPRINT_ERROR_ALREADY_IN_USE,
"Enrollment in progress");
g_dbus_method_invocation_return_gerror (invocation, error);
g_error_free (error);
return TRUE;
}
@ -1180,7 +1173,8 @@ static gboolean try_delete_print(FprintDevice *rdev)
for (user = users; user; user = user->next) {
const char *username = user->data;
GSList *fingers, *finger;
g_autoptr(GSList) fingers = NULL;
GSList *finger;
fingers = store.discover_prints (priv->dev, username);
@ -1205,8 +1199,6 @@ static gboolean try_delete_print(FprintDevice *rdev)
/* Found an equal print, remove it */
g_ptr_array_remove_index (device_prints, index);
}
g_slist_free (fingers);
}
g_slist_free_full (users, g_free);
@ -1230,14 +1222,18 @@ static gboolean try_delete_print(FprintDevice *rdev)
return TRUE;
}
#if !GLIB_CHECK_VERSION (2, 63, 3)
G_DEFINE_AUTOPTR_CLEANUP_FUNC (GDate, g_date_free);
#endif
static FpPrint*
fprint_device_create_enroll_template(FprintDevice *rdev, gint finger_num)
{
g_autoptr(SessionData) session = NULL;
FprintDevicePrivate *priv = fprint_device_get_instance_private(rdev);
g_autoptr(GDateTime) datetime = NULL;
g_autoptr(GDate) date = NULL;
FpPrint *template = NULL;
GDateTime *datetime = NULL;
GDate *date = NULL;
gint year, month, day;
session = session_data_get (priv);
@ -1249,8 +1245,6 @@ fprint_device_create_enroll_template(FprintDevice *rdev, gint finger_num)
g_date_time_get_ymd (datetime, &year, &month, &day);
date = g_date_new_dmy (day, month, year);
fp_print_set_enroll_date (template, date);
g_date_free (date);
g_date_time_unref (datetime);
return template;
}
@ -1415,8 +1409,7 @@ static gboolean fprint_device_list_enrolled_fingers (FprintDBusDevice *dbus_dev,
FprintDevice *rdev = FPRINT_DEVICE (dbus_dev);
FprintDevicePrivate *priv = fprint_device_get_instance_private(rdev);
g_autoptr (GPtrArray) ret = NULL;
GError *error = NULL;
GSList *prints;
g_autoptr(GSList) prints = NULL;
GSList *item;
const char *sender;
const char *user;
@ -1429,10 +1422,10 @@ static gboolean fprint_device_list_enrolled_fingers (FprintDBusDevice *dbus_dev,
prints = store.discover_prints(priv->dev, user);
if (!prints) {
g_set_error(&error, FPRINT_ERROR, FPRINT_ERROR_NO_ENROLLED_PRINTS,
g_dbus_method_invocation_return_error_literal (invocation,
FPRINT_ERROR,
FPRINT_ERROR_NO_ENROLLED_PRINTS,
"Failed to discover prints");
g_dbus_method_invocation_return_gerror (invocation, error);
g_error_free (error);
return TRUE;
}
@ -1443,8 +1436,6 @@ static gboolean fprint_device_list_enrolled_fingers (FprintDBusDevice *dbus_dev,
}
g_ptr_array_add (ret, NULL);
g_slist_free(prints);
fprint_dbus_device_complete_list_enrolled_fingers (dbus_dev,
invocation, (const gchar *const *) ret->pdata);