diff options
| author |   Damjan Marion <damarion@cisco.com> | 2018-03-06 18:46:54 +0100 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2018-03-06 20:02:21 +0000 |
| commit | c22fcba177bad2c755fdb6d4d52f2a799eceaf34 (patch) | |
| tree | 352fd02a797c7838bbacc2ded5e9a5305dad03d3 | |
| parent | 1275651d77f8e34169654385d7769a83842e2505 (diff) | |
vlib: avoid crash if fill_free_list returns 0 buffers
Change-Id: If1284696e10df71b4029191b5e3adb32c21c0c5f
Signed-off-by: Damjan Marion <damarion@cisco.com>
| -rw-r--r-- | src/vlib/buffer_funcs.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/vlib/buffer_funcs.h b/src/vlib/buffer_funcs.h index 6ea804f8ec4..d1aecac7e80 100644 --- a/src/vlib/buffer_funcs.h +++ b/src/vlib/buffer_funcs.h @@ -304,7 +304,8 @@ vlib_buffer_alloc_from_free_list (vlib_main_t * vm, if (PREDICT_FALSE (len < n_buffers)) { bm->cb.vlib_buffer_fill_free_list_cb (vm, fl, n_buffers); - len = vec_len (fl->buffers); + if (PREDICT_FALSE ((len = vec_len (fl->buffers)) == 0)) + return 0; /* even if fill free list didn't manage to refill free list we should give what we have */ |