intel: Check for a NULL src buffer prior to blt

This can only happen along a malloc failure path, but check anyway.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/src/mesa/drivers/dri/intel/intel_tex_copy.c b/src/mesa/drivers/dri/intel/intel_tex_copy.c
index 224b506c05b17e77862b50b8472095e9b4cb5729..6efb2ddc553e21acfaa26462920c2ebf9c89c1a0 100644 (file)
--- a/src/mesa/drivers/dri/intel/intel_tex_copy.c
+++ b/src/mesa/drivers/dri/intel/intel_tex_copy.c
@@ -102,7 +102,7 @@ do_copy_texsubimage(struct intel_context *intel,
    GLcontext *ctx = &intel->ctx;
    const struct intel_region *src = get_teximage_source(intel, internalFormat);
 
-   if (!intelImage->mt || !src) {
+   if (!intelImage->mt || !src || !src->buffer) {
       if (INTEL_DEBUG & DEBUG_FALLBACKS)
         fprintf(stderr, "%s fail %p %p (0x%08x)\n",
                 __FUNCTION__, intelImage->mt, src, internalFormat);