discover: Check for devices with duplicate serial properties

[petitboot] / discover / device-handler.c

diff --git a/discover/device-handler.c b/discover/device-handler.c
index 95d203920d6f72bf5176c2629e7d2f4aa430a447..251c517f884aaa0c2212898b2e71dd3ad37a8e9e 100644 (file)
--- a/discover/device-handler.c
+++ b/discover/device-handler.c
@@ -103,6 +103,12 @@ static int device_match_id(struct discover_device *dev, const char *id)
        return !strcmp(dev->device->id, id);
 }
 
+static int device_match_serial(struct discover_device *dev, const char *serial)
+{
+       const char *val = discover_device_get_param(dev, "ID_SERIAL");
+       return val && !strcmp(val, serial);
+}
+
 static struct discover_device *device_lookup(
                struct device_handler *device_handler,
                int (match_fn)(struct discover_device *, const char *),
@@ -154,6 +160,13 @@ struct discover_device *device_lookup_by_id(
        return device_lookup(device_handler, device_match_id, id);
 }
 
+struct discover_device *device_lookup_by_serial(
+               struct device_handler *device_handler,
+               const char *serial)
+{
+       return device_lookup(device_handler, device_match_serial, serial);
+}
+
 void device_handler_destroy(struct device_handler *handler)
 {
        talloc_free(handler);