mipmap_cache.c: Fix crash when called with DT_MIPMAP_PREFETCH.

In this case buf is null.
darktable-org · Aug 31, 2024 · 23119b2 · 23119b2
1 parent b85a45f
commit 23119b2
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/common/mipmap_cache.c b/src/common/mipmap_cache.c
@@ -842,7 +842,11 @@ void dt_mipmap_cache_get_with_caller(
  int line)
 {
  const uint32_t key = get_key(imgid, mip);
- buf->loader_status = DT_IMAGEIO_OK;
+
+ // buf may be null when called with DT_MIPMAP_PREFETCH for example
+ if(buf)
+ buf->loader_status = DT_IMAGEIO_OK;
+
  if(flags == DT_MIPMAP_TESTLOCK)
  {
  // simple case: only get and lock if it's there.