1 files changed, 16 insertions, 1 deletions
diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c
index 8886759..64ffe92 100644
--- a/src/egl/main/eglapi.c
+++ b/src/egl/main/eglapi.c
@@ -1469,9 +1469,24 @@ eglClientWaitSync(EGLDisplay dpy, EGLSync sync, EGLint flags, EGLTime timeout)
    if (s->SyncStatus == EGL_SIGNALED_KHR)
       RETURN_EGL_EVAL(disp, EGL_CONDITION_SATISFIED_KHR);
 
+   /* if sync type is EGL_SYNC_REUSABLE_KHR, dpy should be
+    * unlocked here to allow other threads also to be able to
+    * go into waiting state.
+    */
+
+   if (s->Type == EGL_SYNC_REUSABLE_KHR)
+      _eglUnlockDisplay(dpy);
+
    ret = drv->API.ClientWaitSyncKHR(drv, disp, s, flags, timeout);
 
-   RETURN_EGL_EVAL(disp, ret);
+   /*
+    * 'disp' is already unlocked for reusable sync type,
+    * so passing 'NULL' to bypass unlocking display.
+    */
+   if (s->Type == EGL_SYNC_REUSABLE_KHR)
+      RETURN_EGL_EVAL(NULL, ret);
+   else
+      RETURN_EGL_EVAL(disp, ret);
 }