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authorMohsin Kazmi <sykazmi@cisco.com>2020-10-28 19:35:53 +0100
committerDamjan Marion <dmarion@me.com>2020-10-29 16:38:33 +0000
commit108b15b4ef4844ef782639b9d9c3c71c222b5d9f (patch)
tree9488668e31c8b5e33d506e7bf860fc4382d9d3ea
parente4306b6749b66ceeb434b19b7b23d36443d3d4b8 (diff)
tap: fix the segv
Type: fix Change-Id: I53cb96950f8658d7159fb0bd8ecfa50b6977e5af Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
-rw-r--r--src/vnet/devices/tap/tap.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/vnet/devices/tap/tap.c b/src/vnet/devices/tap/tap.c
index 6ad01770cf0..aa9182a58f7 100644
--- a/src/vnet/devices/tap/tap.c
+++ b/src/vnet/devices/tap/tap.c
@@ -109,8 +109,11 @@ tap_free (vlib_main_t * vm, virtio_if_t * vif)
virtio_vring_free_tx (vm, vif, TX_QUEUE (i));
/* *INDENT-ON* */
- _IOCTL (vif->tap_fds[0], TUNSETPERSIST, (void *) (uintptr_t) 0);
- tap_log_dbg (vif, "TUNSETPERSIST: unset");
+ if (vif->tap_fds)
+ {
+ _IOCTL (vif->tap_fds[0], TUNSETPERSIST, (void *) (uintptr_t) 0);
+ tap_log_dbg (vif, "TUNSETPERSIST: unset");
+ }
error:
vec_foreach_index (i, vif->tap_fds) close (vif->tap_fds[i]);