diff options
Diffstat (limited to 'firmware/buflib.c')
| -rw-r--r-- | firmware/buflib.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/firmware/buflib.c b/firmware/buflib.c index 7263f1b95d..3130bc960c 100644 --- a/firmware/buflib.c +++ b/firmware/buflib.c @@ -820,6 +820,8 @@ find_block_before(struct buflib_context *ctx, union buflib_data* block, int buflib_free(struct buflib_context *ctx, int handle_num) { + if (handle_num <= 0) /* invalid or already free */ + return handle_num; union buflib_data *handle = ctx->handle_table - handle_num, *freed_block = handle_to_block(ctx, handle_num), *block, *next_block; |