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

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In my testing I haven't found any cases where we get a null context
pointer, but it might still be possible.  Check for null just to be safe.

Note: This is a candidate for the stable branches.
(cherry picked from commit a4311054c7)
This commit is contained in:
Brian Paul 2012-12-03 08:30:04 -07:00 • committed by Andreas Boll
parent d4fc90c129
commit d32aff91c1
1 changed files with 4 additions and 4 deletions
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8
src/mesa/state_tracker/st_cb_fbo.c
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@ -228,10 +228,10 @@ static void
st_renderbuffer_delete(struct gl_context *ctx, struct gl_renderbuffer *rb)
{
struct st_renderbuffer *strb = st_renderbuffer(rb);
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
pipe_surface_release(pipe, &strb->surface);
if (ctx) {
struct st_context *st = st_context(ctx);
pipe_surface_release(st->pipe, &strb->surface);
}
pipe_resource_reference(&strb->texture, NULL);
free(strb->data);
_mesa_delete_renderbuffer(ctx, rb);