Module: Mesa
Branch: master
Commit: 03f8a97d718502f60d16000aead251d88a751149
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=03f8a97d718502f60d16000aead251d88a751149

Author: Brian Paul <[email protected]>
Date:   Fri Mar 16 09:31:13 2012 -0600

st/mesa: add null pointer check in st_texture_image_map()

If we failed to allocate a memory resource for the texture we'd crash
when we tried to map it.  Now we propogate the NULL back up to the
texstore code and generate GL_OUT_OF_MEMORY.

Fixes a crash with the upcoming piglit max-texture-size test.

NOTE: This is a candidate for the 8.0 branch.

Reviewed-by: José Fonseca <[email protected]>

---

 src/mesa/state_tracker/st_texture.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/mesa/state_tracker/st_texture.c 
b/src/mesa/state_tracker/st_texture.c
index 132d7a8..9627a61 100644
--- a/src/mesa/state_tracker/st_texture.c
+++ b/src/mesa/state_tracker/st_texture.c
@@ -222,6 +222,9 @@ st_texture_image_map(struct st_context *st, struct 
st_texture_image *stImage,
 
    DBG("%s \n", __FUNCTION__);
 
+   if (!stImage->pt)
+      return NULL;
+
    if (stObj->pt != stImage->pt)
       level = 0;
    else

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