Józef Kucia : libs/vkd3d: Return early if there are no descriptors to update.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 2a430ae9916bec21429205f20cbb42f4dc3e5be8
URL:    https://source.winehq.org/git/vkd3d.git/?a=commit;h=2a430ae9916bec21429205f2...

Author: Józef Kucia <jkucia(a)codeweavers.com>
Date:   Fri Apr 13 12:37:41 2018 +0200

libs/vkd3d: Return early if there are no descriptors to update.

Signed-off-by: Józef Kucia <jkucia(a)codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 libs/vkd3d/command.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libs/vkd3d/command.c b/libs/vkd3d/command.c
index a056ca3..b7b774b 100644
--- a/libs/vkd3d/command.c
+++ b/libs/vkd3d/command.c
@@ -2048,6 +2048,10 @@ static void d3d12_command_list_update_descriptor_table(struct d3d12_command_list
     descriptor_count = 0;
     for (i = 0; i < descriptor_table->range_count; ++i)
         descriptor_count += descriptor_table->ranges[i].descriptor_count;
+
+    if (!descriptor_count)
+        return;
+
     if (!(descriptor_writes = vkd3d_calloc(descriptor_count, sizeof(*descriptor_writes))))
         return;
     if (!(image_infos = vkd3d_calloc(descriptor_count, sizeof(*image_infos))))