From 6b4d43dbf4bbb86d479d8fca480c8bec39e2714b Mon Sep 17 00:00:00 2001
From: "Xiang, Haihao" <haihao.xiang@intel.com>
Date: Fri, 20 Jul 2007 09:59:40 +0800
Subject: [PATCH] lock display when creating context

---
 src/xvmc/I915XvMC.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/xvmc/I915XvMC.c b/src/xvmc/I915XvMC.c
index 5efd762a..3eb0bc38 100644
--- a/src/xvmc/I915XvMC.c
+++ b/src/xvmc/I915XvMC.c
@@ -1841,8 +1841,8 @@ Status XvMCCreateContext(Display *display, XvPortID port,
     /* Verify the XvMC extension exists */
     XLockDisplay(display);
     if (!XvMCQueryExtension(display, &event_base, &error_base)) {
-        printf("XvMCExtension is not available!\n");
         XUnlockDisplay(display);
+        printf("XvMCExtension is not available!\n");
         return BadAlloc;
     }
     /* Verify XvMC version */
@@ -1873,12 +1873,15 @@ Status XvMCCreateContext(Display *display, XvPortID port,
       Pass control to the X server to create a drm_context_t for us and
       validate the with/height and flags.
     */
+    XLockDisplay(display);
     if ((ret = _xvmc_create_context(display, context, &priv_count, &priv_data))) {
+        XUnlockDisplay(display);
         printf("Unable to create XvMC Context.\n");
         free(pI915XvMC);
         context->privData = NULL;
         return ret;
     }
+    XUnlockDisplay(display);
 
     if (priv_count != (sizeof(I915XvMCCreateContextRec) >> 2)) {
         printf("_xvmc_create_context() returned incorrect data size!\n");