1 files changed, 47 insertions, 0 deletions
diff --git a/media-video/wireplumber/files/wireplumber-0.4.5-m-reserve-device-replace-the-hash-table-key-on-new-i.patch b/media-video/wireplumber/files/wireplumber-0.4.5-m-reserve-device-replace-the-hash-table-key-on-new-i.patch
new file mode 100644
index 000000000000..70d69093d082
--- /dev/null
+++ b/media-video/wireplumber/files/wireplumber-0.4.5-m-reserve-device-replace-the-hash-table-key-on-new-i.patch
@@ -0,0 +1,47 @@
+From f4546a18e871537be698916178b40091a4a0b377 Mon Sep 17 00:00:00 2001
+From: Peter Hutterer <peter.hutterer@who-t.net>
+Date: Fri, 12 Nov 2021 11:19:54 +1000
+Subject: [PATCH 3/3] m-reserve-device: replace the hash table key on new
+ insert
+
+We're using the WpReserveDevice's name as key in the hash table, so we
+must update the key as well when we replace an item in the hashtable -
+the old device (and its name) will be released.
+
+The side-effect of this is that the *third* device with an identical
+name will no longer replace the previous device. This results in the
+following sequence:
+
+- dev1 added: name Audio0
+  - dev1 requests name owner Audio0
+- dev2 added: name Audio0
+  - replace dev1 in the hashtable
+     - dev1 emits "release" signal
+     - dev1 unowns the Audio0 name
+  - dev2 requests name owner Audio0
+- dev3 added: name Audio0
+  - adds to the hashtable because the existing key is now undefined
+  - dev3 requests name owner Audio0
+     - error, you cannot request ownership for the same name twice
+
+Fixes #93
+---
+ modules/module-reserve-device/plugin.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/modules/module-reserve-device/plugin.c b/modules/module-reserve-device/plugin.c
+index d8e4e09..68df6ee 100644
+--- a/modules/module-reserve-device/plugin.c
++++ b/modules/module-reserve-device/plugin.c
+@@ -221,7 +221,7 @@ wp_reserve_device_plugin_create_reservation (WpReserveDevicePlugin *self,
+       NULL);
+ 
+   /* use rd->name to avoid copying @em name again */
+-  g_hash_table_insert (self->reserve_devices, rd->name, rd);
++  g_hash_table_replace (self->reserve_devices, rd->name, rd);
+ 
+   return g_object_ref (rd);
+ }
+-- 
+2.34.0
+