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net/tap: Set return code on failure

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Match the other error handling in this function.

Fixes: e7b347d0bf ("net: detect errors from probing vnet hdr flag for TAP devices")

Reviewed-by: Patrick Venture <venture@google.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Foley <pefoley@google.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Peter Foley 2022-01-14 13:08:58 +08:00 committed by Jason Wang
parent f3e5a17593
commit 41bcea7b2c
1 changed files with 1 additions and 0 deletions
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net/tap.c
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@ -900,6 +900,7 @@ int net_init_tap(const Netdev *netdev, const char *name,
if (i == 0) {
vnet_hdr = tap_probe_vnet_hdr(fd, errp);
if (vnet_hdr < 0) {
ret = -1;
goto free_fail;
}
} else if (vnet_hdr != tap_probe_vnet_hdr(fd, NULL)) {