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-rw-r--r--src/devices/device_util.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/devices/device_util.c b/src/devices/device_util.c
index 9081a36ea2..84fb11505c 100644
--- a/src/devices/device_util.c
+++ b/src/devices/device_util.c
@@ -583,6 +583,8 @@ void search_bus_resources(struct bus *bus, unsigned long type_mask,
if (subbus->link_num
== IOINDEX_SUBTRACTIVE_LINK(res->index))
break;
+ if (!subbus) /* Why can subbus be NULL? */
+ break;
search_bus_resources(subbus, type_mask, type,
search, gp);
continue;