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kcm: Destroy mutex in kcm_exit_net()

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[ Upstream commit 6ad40b36cd ]

kcm_exit_net() should call mutex_destroy() on knet->mutex. This is especially
needed if CONFIG_DEBUG_MUTEXES is enabled.

Fixes: ab7ac4eb98 ("kcm: Kernel Connection Multiplexor module")
Signed-off-by: Shigeru Yoshida <syoshida@redhat.com>
Link: https://lore.kernel.org/r/20230902170708.1727999-1-syoshida@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Shigeru Yoshida
2023-09-03 02:07:08 +09:00
committed by Greg Kroah-Hartman
parent 746a8df5e4
commit 46f02fc7f6
1 changed files with 2 additions and 0 deletions
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net/kcm/kcmsock.c
+2
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@@ -1982,6 +1982,8 @@ static __net_exit void kcm_exit_net(struct net *net)
* that all multiplexors and psocks have been destroyed. * that all multiplexors and psocks have been destroyed.
*/ */
WARN_ON(!list_empty(&knet->mux_list)); WARN_ON(!list_empty(&knet->mux_list));
mutex_destroy(&knet->mutex);
} }
static struct pernet_operations kcm_net_ops = { static struct pernet_operations kcm_net_ops = {