diff options
| -rw-r--r-- | lib/flex_array.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/flex_array.c b/lib/flex_array.c index 0c33b24498ba..854b57bd7d9d 100644 --- a/lib/flex_array.c +++ b/lib/flex_array.c @@ -253,9 +253,16 @@ int flex_array_prealloc(struct flex_array *fa, unsigned int start, unsigned int end; struct flex_array_part *part; + if (!start && !nr_elements) + return 0; + if (start >= fa->total_nr_elements) + return -ENOSPC; + if (!nr_elements) + return 0; + end = start + nr_elements - 1; - if (start >= fa->total_nr_elements || end >= fa->total_nr_elements) + if (end >= fa->total_nr_elements) return -ENOSPC; if (elements_fit_in_base(fa)) return 0; @@ -346,6 +353,8 @@ int flex_array_shrink(struct flex_array *fa) int part_nr; int ret = 0; + if (!fa->total_nr_elements) + return 0; if (elements_fit_in_base(fa)) return ret; for (part_nr = 0; part_nr < FLEX_ARRAY_NR_BASE_PTRS; part_nr++) { |