Mesa (master): i830: Validate API and version before calling i830CreateContext

[Ian Romanick]

Module: Mesa
Branch: master
Commit: a81e4b3e9272f70ab9074f1c133dda94c58daeff
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a81e4b3e9272f70ab9074f1c133dda94c58daeff

Author: Ian Romanick <ian.d.romanick at intel.com>
Date:   Tue Aug  7 12:16:35 2012 -0700

i830: Validate API and version before calling i830CreateContext

Signed-off-by: Ian Romanick <ian.d.romanick at intel.com>

---

 src/mesa/drivers/dri/intel/intel_screen.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c
index cdae702..877d11b 100644
--- a/src/mesa/drivers/dri/intel/intel_screen.c
+++ b/src/mesa/drivers/dri/intel/intel_screen.c
@@ -736,9 +736,27 @@ intelCreateContext(gl_api api,
       success = i915CreateContext(api, mesaVis, driContextPriv,
                                   sharedContextPrivate);
    } else {
+      switch (api) {
+      case API_OPENGL:
+         if (major_version > 1 || minor_version > 3) {
+            *error = __DRI_CTX_ERROR_BAD_VERSION;
+            return false;
+         }
+         break;
+      case API_OPENGLES:
+         break;
+      default:
+         *error = __DRI_CTX_ERROR_BAD_API;
+         return false;
+      }
+
       intelScreen->no_vbo = true;
       success = i830CreateContext(mesaVis, driContextPriv,
 				  sharedContextPrivate);
+      if (!success) {
+         *error = __DRI_CTX_ERROR_NO_MEMORY;
+         return false;
+      }
    }
 #else
    success = brwCreateContext(api, mesaVis,