diff options
| author |   Andrew Yourtchenko <ayourtch@gmail.com> | 2019-11-25 18:25:46 +0000 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2019-11-25 20:30:37 +0000 |
| commit | 0d3d4824a46205e776ff32c82be4cb514f459a5f (patch) | |
| tree | 1490a7d9f97867670b03321e23b8d0d14f141eb0 | |
| parent | 599db9e9d0c61ac39b16cc572f975cdc70c07783 (diff) | |
tap: fix coverity warning 205875
check the return result from fcntl, and if error, behave
the same way the expansion of _IOCTL macro does.
Type: fix
Change-Id: I6d537d1bdedae64470612aef64b46e07387fe84b
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
| -rw-r--r-- | src/vnet/devices/tap/tap.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/vnet/devices/tap/tap.c b/src/vnet/devices/tap/tap.c index 5f6d720c645..288099e2685 100644 --- a/src/vnet/devices/tap/tap.c +++ b/src/vnet/devices/tap/tap.c @@ -223,7 +223,12 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args) else host_if_name = (char *) args->host_if_name; - fcntl (tfd, F_SETFL, O_NONBLOCK); + if (fcntl (tfd, F_SETFL, O_NONBLOCK) < 0) + { + err = clib_error_return_unix (0, "fcntl(tfd, F_SETFL, O_NONBLOCK)"); + tap_log_err (vif, "set nonblocking: %U", format_clib_error, err); + goto error; + } tap_log_dbg (vif, "TUNSETVNETHDRSZ: fd %d vnet_hdr_sz %u", tfd, hdrsz); _IOCTL (tfd, TUNSETVNETHDRSZ, &hdrsz); |