Mesa (master): iris: Fix memory leak of SO targets

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Module: Mesa
Branch: master
Commit: 3d3685d3548f7e4fbabafb5b3a184486a5274c23
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3d3685d3548f7e4fbabafb5b3a184486a5274c23

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Thu Jun 27 14:09:05 2019 -0700

iris: Fix memory leak of SO targets

We need to pitch these on context destroy.

---

 src/gallium/drivers/iris/iris_state.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gallium/drivers/iris/iris_state.c b/src/gallium/drivers/iris/iris_state.c
index 8d7b2557b76..f1c4a6f7874 100644
--- a/src/gallium/drivers/iris/iris_state.c
+++ b/src/gallium/drivers/iris/iris_state.c
@@ -5624,6 +5624,10 @@ iris_destroy_state(struct iris_context *ice)
    }
    free(ice->state.genx);
 
+   for (int i = 0; i < 4; i++) {
+      pipe_so_target_reference(&ice->state.so_target[i], NULL);
+   }
+
    for (unsigned i = 0; i < ice->state.framebuffer.nr_cbufs; i++) {
       pipe_surface_reference(&ice->state.framebuffer.cbufs[i], NULL);
    }