Chen Qun b19a056849 tap: return err when tap TUNGETIFF fail
When hotplug ovs kernel netcard, even tap TUNGETIFF failed,
the hotplug would go on and would lead to qemu assert.
The failure should lead to the free_fail.

Signed-off-by: miaoyubo <miaoyubo@huawei.com>
Signed-off-by: Yan Wang <wangyan122@huawei.com>
Signed-off-by: imxcc <xingchaochao@huawei.com>
(cherry picked from commit fcfc664bacbb7d51d667dd6d0c20ce088bc7effe)
2022-03-19 14:42:31 +08:00
2019-11-06 19:50:55 +08:00
2019-09-30 11:15:46 -04:00
2019-09-30 11:15:46 -04:00
2022-03-19 14:31:23 +08:00
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