From: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Date: Tue, 9 Feb 2016 10:40:08 +0000 (+0100)
Subject: st/mesa: check ureg_create() retval in create_pbo_upload_vs()
X-Git-Tag: upstream/17.1.0~12677
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5e8db898fd53b7622e21616f0ff27d985d7be758;p=platform%2Fupstream%2Fmesa.git

st/mesa: check ureg_create() retval in create_pbo_upload_vs()

This avoids a possible NULL dereference because ureg_create() might
return a NULL pointer.

Spotted by coverity.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
---

diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index f2b607c..d53126a 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -1132,6 +1132,8 @@ create_pbo_upload_vs(struct st_context *st)
    struct ureg_dst out_layer;
 
    ureg = ureg_create(TGSI_PROCESSOR_VERTEX);
+   if (!ureg)
+      return NULL;
 
    in_pos = ureg_DECL_vs_input(ureg, TGSI_SEMANTIC_POSITION);