Giovanni Mascellani : vkd3d: Do not read blocked_queue_count without holding the device mutex.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: e076fd9c77482a2c71314f923cde553c46940df2
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/e076fd9c77482a2c71314f923cde55...

Author: Giovanni Mascellani 
Date:   Wed Feb  8 12:55:05 2023 +0100

vkd3d: Do not read blocked_queue_count without holding the device mutex.

---

libs/vkd3d/command.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libs/vkd3d/command.c b/libs/vkd3d/command.c
index 62fc5149..45620e86 100644
--- a/libs/vkd3d/command.c
+++ b/libs/vkd3d/command.c
@@ -642,6 +642,9 @@ static HRESULT d3d12_device_add_blocked_command_queues(struct d3d12_device *devi
     HRESULT hr = S_OK;
     unsigned int i;

+    if (count == 0)
+        return S_OK;
+
     vkd3d_mutex_lock(&device->mutex);

if ((i = ARRAY_SIZE(device->blocked_queues) - device->blocked_queue_count) < count)
@@ -697,8 +700,6 @@ static HRESULT d3d12_device_flush_blocked_queues(struct d3d12_device *device)
     /* Executing an op on one queue may unblock another, so repeat until nothing is flushed. */
     do
     {
-        if (!device->blocked_queue_count)
-            return S_OK;
         if (FAILED(hr = d3d12_device_flush_blocked_queues_once(device, &flushed_any)))
             return hr;
     }