fix bug

1 files changed, 1 insertions, 0 deletions

diff --git a/magic_buddy/magic_buddy.c b/magic_buddy/magic_buddy.c
index 1029f58..15bd23f 100644
--- a/magic_buddy/magic_buddy.c
+++ b/magic_buddy/magic_buddy.c
@@ -87,6 +87,7 @@ static void *_allocate(size_t logsize, struct buddy *state) {
     if (logsize == state->root_logsize) return 0;
 
     struct free_block *parent = _allocate(logsize + 1, state);
+    if (!parent) return 0;
     struct free_block *buddy = buddy_of(parent, logsize, state);
     // split @parent in half and place the buddy on the avail list.
     memcpy(buddy->magic, state->magic, sizeof(state->magic));