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Diffstat (limited to 'fs/dlm/lowcomms.c')
-rw-r--r--fs/dlm/lowcomms.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 27970a58d29b..fc0bff74c61e 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -260,7 +260,7 @@ static int nodeid_to_addr(int nodeid, struct sockaddr *retaddr)
static void lowcomms_data_ready(struct sock *sk, int count_unused)
{
struct connection *con = sock2con(sk);
- if (!test_and_set_bit(CF_READ_PENDING, &con->flags))
+ if (con && !test_and_set_bit(CF_READ_PENDING, &con->flags))
queue_work(recv_workqueue, &con->rwork);
}
@@ -268,7 +268,7 @@ static void lowcomms_write_space(struct sock *sk)
{
struct connection *con = sock2con(sk);
- if (!test_and_set_bit(CF_WRITE_PENDING, &con->flags))
+ if (con && !test_and_set_bit(CF_WRITE_PENDING, &con->flags))
queue_work(send_workqueue, &con->swork);
}
@@ -1400,8 +1400,11 @@ void dlm_lowcomms_stop(void)
down(&connections_lock);
for (i = 0; i <= max_nodeid; i++) {
con = __nodeid2con(i, 0);
- if (con)
+ if (con) {
con->flags |= 0xFF;
+ if (con->sock)
+ con->sock->sk->sk_user_data = NULL;
+ }
}
up(&connections_lock);