i915g: Add assert to check for null pointer dereference.

diff --git a/src/gallium/drivers/i915/i915_state_emit.c b/src/gallium/drivers/i915/i915_state_emit.c
index a3d4e3b04e524ad55ff3aeda0a58df3fef31f83a..ecbcabb4403e9d0e66f7b8d75e4ff4f9975e340f 100644 (file)
--- a/src/gallium/drivers/i915/i915_state_emit.c
+++ b/src/gallium/drivers/i915/i915_state_emit.c
@@ -244,6 +244,7 @@ i915_emit_hardware_state(struct i915_context *i915 )
 
          OUT_BATCH(_3DSTATE_BUF_INFO_CMD);
 
+         assert(tex);
          OUT_BATCH(BUF_3D_ID_DEPTH |
                    BUF_3D_PITCH(tex->stride) |  /* pitch in bytes */
                    ztile);