Fix error handling for mrb_pool_realloc().

mrb_pool_alloc() may return NULL.

Fix error handling for mrb_pool_realloc().
mrb_pool_alloc() may return NULL.
5ee00453 · Tatsuhiko Kubo · d49f8517 · 5ee00453
Commit 5ee00453 authored Aug 20, 2014 by Tatsuhiko Kubo
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src/pool.c src/pool.c +3 -0

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--- a/src/pool.c
+++ b/src/pool.c
@@ -166,6 +166,9 @@ mrb_pool_realloc(mrb_pool *pool, void *p, size_t oldlen, size_t newlen)
    page = page->next;
  }
  np = mrb_pool_alloc(pool, newlen);
+  if (np == NULL) {
+      return NULL;
+  }
  memcpy(np, p, oldlen);
  return np;
 }