From 19b143b7bc3865fed8c8b09156b85d8c41c32d6b Mon Sep 17 00:00:00 2001
From: Faith Ekstrand <faith.ekstrand@collabora.com>
Date: Thu, 9 May 2024 14:33:16 -0500
Subject: [PATCH] nouveau/winsys: Take a reference to BOs found in the cache

Fixes: c370260a8f15 ("nouveau/winsys: Add dma-buf import support")
Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24795>
---
 src/nouveau/winsys/nouveau_bo.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/nouveau/winsys/nouveau_bo.c b/src/nouveau/winsys/nouveau_bo.c
index e8240f9a271..71fd46a1538 100644
--- a/src/nouveau/winsys/nouveau_bo.c
+++ b/src/nouveau/winsys/nouveau_bo.c
@@ -269,8 +269,11 @@ nouveau_ws_bo_from_dma_buf_locked(struct nouveau_ws_device *dev, int fd)
 
    struct hash_entry *entry =
       _mesa_hash_table_search(dev->bos, (void *)(uintptr_t)handle);
-   if (entry != NULL)
-      return entry->data;
+   if (entry != NULL) {
+      struct nouveau_ws_bo *bo = entry->data;
+      nouveau_ws_bo_ref(bo);
+      return bo;
+   }
 
    /*
     * If we got here, no BO exists for the retrieved handle. If we error