From: Alexander Aring aahringo@redhat.com
[ Upstream commit fcef0e6c27ce109d2c617aa12f0bfd9f7ff47d38 ]
This patch fixes the error path handling in lowcomms_start(). We need to cleanup some static allocated data structure and cleanup possible workqueue if these have started.
Signed-off-by: Alexander Aring aahringo@redhat.com Signed-off-by: David Teigland teigland@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/dlm/lowcomms.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c index b1dd850a4699..9bf920bee292 100644 --- a/fs/dlm/lowcomms.c +++ b/fs/dlm/lowcomms.c @@ -1666,10 +1666,15 @@ static void process_send_sockets(struct work_struct *work)
static void work_stop(void) { - if (recv_workqueue) + if (recv_workqueue) { destroy_workqueue(recv_workqueue); - if (send_workqueue) + recv_workqueue = NULL; + } + + if (send_workqueue) { destroy_workqueue(send_workqueue); + send_workqueue = NULL; + } }
static int work_start(void) @@ -1686,6 +1691,7 @@ static int work_start(void) if (!send_workqueue) { log_print("can't start dlm_send"); destroy_workqueue(recv_workqueue); + recv_workqueue = NULL; return -ENOMEM; }
@@ -1823,7 +1829,7 @@ int dlm_lowcomms_start(void)
error = work_start(); if (error) - goto fail; + goto fail_local;
dlm_allow_conn = 1;
@@ -1840,6 +1846,9 @@ int dlm_lowcomms_start(void) fail_unlisten: dlm_allow_conn = 0; dlm_close_sock(&listen_con.sock); + work_stop(); +fail_local: + deinit_local(); fail: return error; }