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authorJosh Bleecher Snyder <josh@tailscale.com>2020-12-18 16:32:46 -0800
committerJason A. Donenfeld <Jason@zx2c4.com>2021-01-07 14:49:44 +0100
commitb42e32047d16cc4389ef63550e525c7b08320172 (patch)
tree3321c5f3bce9fded5c598923f167bc2273535734 /tai64n
parentb5f966ac2439df9eba182886406f6381934948ad (diff)
device: call wg.Add outside the goroutine
One of the first rules of WaitGroups is that you call wg.Add outside of a goroutine, not inside it. Fix this embarrassing mistake. This prevents an extremely rare race condition (2 per 100,000 runs) which could occur when attempting to start a new peer concurrently with shutting down a device. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
Diffstat (limited to 'tai64n')
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