gallium: fix TFP on gallium

This fixes an uninitialised value use in the dri2 st when doing TFP.

It uses the driContextPriv which isn't initialised at alloc time.

Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/src/gallium/state_trackers/dri/common/dri_context.h b/src/gallium/state_trackers/dri/common/dri_context.h
index 54e56c6..b29e853 100644 (file)
--- a/src/gallium/state_trackers/dri/common/dri_context.h
+++ b/src/gallium/state_trackers/dri/common/dri_context.h
@@ -65,6 +65,8 @@ struct dri_context
 static INLINE struct dri_context *
 dri_context(__DRIcontext * driContextPriv)
 {
+   if (!driContextPriv)
+     return NULL;
    return (struct dri_context *)driContextPriv->driverPrivate;
 }
 

diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c
index c3d1f2c..18b9035 100644 (file)
--- a/src/mesa/drivers/dri/common/dri_util.c
+++ b/src/mesa/drivers/dri/common/dri_util.c
@@ -423,6 +423,7 @@ driCreateNewDrawable(__DRIscreen *psp, const __DRIconfig *config,
        return NULL;
     }
 
+    pdp->driContextPriv = NULL;
     pdp->loaderPrivate = data;
     pdp->hHWDrawable = hwDrawable;
     pdp->refcount = 1;