diff --git a/src/chan_alloc.c b/src/chan_alloc.c
index fa07273..77a4f57 100644
--- a/src/chan_alloc.c
+++ b/src/chan_alloc.c
@@ -31,6 +31,7 @@
 #include <openbsc/abis_nm.h>
 #include <openbsc/abis_rsl.h>
 #include <openbsc/debug.h>
+#include <openbsc/signal.h>
 
 static void auto_release_channel(void *_lchan);
 
@@ -193,8 +194,9 @@
 		lchan->subscr = 0;
 	}
 
-	/* We might kill an active channel... FIXME: call cancellations */
+	/* We might kill an active channel... */
 	if (lchan->use_count != 0) {
+		dispatch_signal(SS_LCHAN, S_LCHAN_UNEXPECTED_RELEASE, lchan);
 		lchan->use_count = 0;
 	}
 
diff --git a/src/gsm_04_08.c b/src/gsm_04_08.c
index aebbd67..7e448dd 100644
--- a/src/gsm_04_08.c
+++ b/src/gsm_04_08.c
@@ -182,6 +182,31 @@
 	memset(lchan->loc_operation, 0, sizeof(*lchan->loc_operation));
 }
 
+static int gsm0408_handle_lchan_signal(unsigned int subsys, unsigned int signal,
+					void *handler_data, void *signal_data)
+{
+	if (subsys != SS_LCHAN || signal != S_LCHAN_UNEXPECTED_RELEASE)
+		return 0;
+
+	/*
+	 * Cancel any outstanding location updating request
+	 * operation taking place on the lchan.
+	 */
+	struct gsm_lchan *lchan = (struct gsm_lchan *)handler_data;
+	release_loc_updating_req(lchan);
+
+	return 0;
+}
+
+/*
+ * This will be ran by the linker when loading the DSO. We use it to
+ * do system initialization, e.g. registration of signal handlers.
+ */
+static __attribute__((constructor)) void on_dso_load_0408(void)
+{
+	register_signal_handler(SS_LCHAN, gsm0408_handle_lchan_signal, NULL);
+}
+
 static void to_bcd(u_int8_t *bcd, u_int16_t val)
 {
 	bcd[2] = val % 10;