[PATCH net-next] ppp: Destroy the mutex when cleanup

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From: Gao Feng <gfree.wind@xxxxxxxxxxx>

The mutex_destroy only makes sense when enable DEBUG_MUTEX. For the
good readbility, it's better to invoke it in exit func when the init
func invokes mutex_init.

Signed-off-by: Gao Feng <gfree.wind@xxxxxxxxxxx>
 drivers/net/ppp/ppp_generic.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index af7f93e..4489133 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -960,6 +960,7 @@ static __net_exit void ppp_exit_net(struct net *net)
+	mutex_destroy(&pn->all_ppp_mutex);

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