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udev-device: Fix critical warning if the device has no parent

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This commit is contained in:
Richard Hughes 2019-01-28 15:23:20 +00:00
parent 5502cd5689
commit fc4fbfc98f
1 changed files with 9 additions and 7 deletions
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16
src/fu-udev-device.c
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@ -91,6 +91,7 @@ fu_udev_device_probe (FuDevice *device, GError **error)
FuUdevDevicePrivate *priv = GET_PRIVATE (self);
const gchar *tmp;
g_autofree gchar *subsystem = NULL;
g_autoptr(GUdevDevice) udev_parent = NULL;
/* set ven:dev:rev */
priv->vendor = fu_udev_device_get_sysfs_attr_as_uint64 (priv->udev_device, "vendor");
@ -98,17 +99,18 @@ fu_udev_device_probe (FuDevice *device, GError **error)
priv->revision = fu_udev_device_get_sysfs_attr_as_uint64 (priv->udev_device, "revision");
/* fallback to the parent */
if (priv->vendor == 0x0 && priv->model == 0x0 && priv->revision == 0x0) {
g_autoptr(GUdevDevice) parent = g_udev_device_get_parent (priv->udev_device);
priv->vendor = fu_udev_device_get_sysfs_attr_as_uint64 (parent, "vendor");
priv->model = fu_udev_device_get_sysfs_attr_as_uint64 (parent, "device");
priv->revision = fu_udev_device_get_sysfs_attr_as_uint64 (parent, "revision");
udev_parent = g_udev_device_get_parent (priv->udev_device);
if (udev_parent != NULL &&
priv->vendor == 0x0 && priv->model == 0x0 && priv->revision == 0x0) {
priv->vendor = fu_udev_device_get_sysfs_attr_as_uint64 (udev_parent, "vendor");
priv->model = fu_udev_device_get_sysfs_attr_as_uint64 (udev_parent, "device");
priv->revision = fu_udev_device_get_sysfs_attr_as_uint64 (udev_parent, "revision");
}
/* hidraw helpfully encodes the information in a different place */
if (priv->vendor == 0x0 && priv->model == 0x0 && priv->revision == 0x0 &&
if (udev_parent != NULL &&
priv->vendor == 0x0 && priv->model == 0x0 && priv->revision == 0x0 &&
g_strcmp0 (g_udev_device_get_subsystem (priv->udev_device), "hidraw") == 0) {
g_autoptr(GUdevDevice) udev_parent = g_udev_device_get_parent (priv->udev_device);
tmp = g_udev_device_get_property (udev_parent, "HID_ID");
if (tmp != NULL && strlen (tmp) == 22) {
priv->vendor = fu_udev_device_read_uint16 (tmp + 10);