diff --git a/girs/GstVulkan-1.0.gir b/girs/GstVulkan-1.0.gir
index d00c72b2cc..d32c42d9cc 100644
--- a/girs/GstVulkan-1.0.gir
+++ b/girs/GstVulkan-1.0.gir
@@ -2681,6 +2681,7 @@ gst_vulkan_full_screen_quad_set_blend_factors().</doc>
         </return-value>
         <parameters>
           <instance-parameter name="self" transfer-ownership="none">
+            <doc xml:space="preserve" filename="../subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkfullscreenquad.c">a #GstVulkanFullScreenQuad</doc>
             <type name="VulkanFullScreenQuad" c:type="GstVulkanFullScreenQuad*"/>
           </instance-parameter>
         </parameters>
@@ -3528,7 +3529,8 @@ inside @handle.</doc>
             <doc xml:space="preserve" filename="../subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkimagebufferpool.c">The Vulkan image usage flags.</doc>
             <type name="Vulkan.ImageUsageFlags" c:type="VkImageUsageFlags*"/>
           </parameter>
-          <parameter name="mem_props" transfer-ownership="none">
+          <parameter name="mem_props" direction="out" caller-allocates="1" transfer-ownership="none" optional="1" allow-none="1">
+            <doc xml:space="preserve" filename="../subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkimagebufferpool.c">Vulkan memory property flags.</doc>
             <type name="Vulkan.MemoryPropertyFlags" c:type="VkMemoryPropertyFlags*"/>
           </parameter>
           <parameter name="initial_layout" direction="out" caller-allocates="1" transfer-ownership="none" optional="1" allow-none="1">
@@ -4642,7 +4644,9 @@ images in @extra_barriers.</doc>
             <type name="VulkanOperation" c:type="GstVulkanOperation*"/>
           </instance-parameter>
           <parameter name="extra_barriers" transfer-ownership="none">
-            <doc xml:space="preserve" filename="../subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkoperation.c">a #GArray of extra image memory barriers to handle</doc>
+            <doc xml:space="preserve" filename="../subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkoperation.c">a #GArray of extra image memory barriers to handle, either
+VkImageMemoryBarrier or VkImageMemoryBarrier2KHR, depending whether
+synchronization2 extension is used.</doc>
             <array name="GLib.Array" c:type="GArray*">
               <type name="gpointer" c:type="gpointer"/>
             </array>
diff --git a/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkfullscreenquad.c b/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkfullscreenquad.c
index f24d378173..17ff916bd6 100644
--- a/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkfullscreenquad.c
+++ b/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkfullscreenquad.c
@@ -1681,7 +1681,7 @@ error:
 
 /**
  * gst_vulkan_full_screen_quad_get_queue:
- * @filter: a #GstVulkanVideoFilter
+ * @self: a #GstVulkanFullScreenQuad
  *
  * Returns: (transfer full) (nullable): The currently configured
  *     #GstVulkanQueue
diff --git a/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkimagebufferpool.c b/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkimagebufferpool.c
index 1c3e7b50dc..b295a33c3b 100644
--- a/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkimagebufferpool.c
+++ b/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkimagebufferpool.c
@@ -145,7 +145,7 @@ gst_vulkan_image_buffer_pool_config_set_encode_caps (GstStructure * config,
  * gst_vulkan_image_buffer_pool_config_get_allocation_params:
  * @config: the #GstStructure with the pool's configuration.
  * @usage: (out) (optional): The Vulkan image usage flags.
- * @mem_properties: (out) (optional): Vulkan memory property flags.
+ * @mem_props: (out) (optional): Vulkan memory property flags.
  * @initial_layout: (out) (optional): Initial Vulkan image layout.
  * @initial_access: (out) (optional): Initial Vulkan access flags.
  *
diff --git a/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkoperation.c b/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkoperation.c
index 5931fce6fb..5a1373f435 100644
--- a/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkoperation.c
+++ b/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkoperation.c
@@ -778,7 +778,9 @@ gst_vulkan_operation_new_extra_image_barriers (GstVulkanOperation * self)
 /**
  * gst_vulkan_operation_add_extra_image_barriers:
  * @self: a #GstVulkanOperation
- * @extra_barriers: a #GArray of extra image memory barriers to handle
+ * @extra_barriers: a #GArray of extra image memory barriers to handle, either
+ * VkImageMemoryBarrier or VkImageMemoryBarrier2KHR, depending whether
+ * synchronization2 extension is used.
  *
  * See also: gst_vulkan_operation_use_sync2(),
  *     gst_vulkan_operation_new_extra_image_barriers() and