Mesa (master): st/wgl: add a lock assertion in stw_framebuffer_from_hwnd_locked()

[Brian Paul]

Module: Mesa
Branch: master
Commit: f45b644e11127e07fe909f418d1c0e2ca3285743
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f45b644e11127e07fe909f418d1c0e2ca3285743

Author: Brian Paul <brianp at vmware.com>
Date:   Tue Nov 10 14:49:01 2015 -0700

st/wgl: add a lock assertion in stw_framebuffer_from_hwnd_locked()

Reviewed-by: Sinclair Yeh <syeh at vmware.com>
Reviewed-by: Charmaine Lee <charmainel at vmware.com>

---

 src/gallium/state_trackers/wgl/stw_framebuffer.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gallium/state_trackers/wgl/stw_framebuffer.c b/src/gallium/state_trackers/wgl/stw_framebuffer.c
index 7d7248e..b49bc22 100644
--- a/src/gallium/state_trackers/wgl/stw_framebuffer.c
+++ b/src/gallium/state_trackers/wgl/stw_framebuffer.c
@@ -55,6 +55,7 @@ stw_framebuffer_from_hwnd_locked(HWND hwnd)
    for (fb = stw_dev->fb_head; fb != NULL; fb = fb->next)
       if (fb->hWnd == hwnd) {
          stw_framebuffer_lock(fb);
+         assert(fb->mutex.RecursionCount == 1);
          return fb;
       }