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iscsi-target: Fix iscsit_transport reference leak during NP thread reset

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This patch fixes a bug in __iscsi_target_login_thread() where an explicit
network portal thread reset ends up leaking the iscsit_transport module
reference, along with the associated iscsi_conn allocation.

This manifests itself with iser-target where a NP reset causes the extra
iscsit_transport reference to be taken in iscsit_conn_set_transport()
during the reset, which prevents the ib_isert module from being unloaded
after the NP thread shutdown has finished.

Cc: [email protected] # v3.10+
Signed-off-by: Nicholas Bellinger <[email protected]>
This commit is contained in:
Nicholas Bellinger 2013-08-18 15:07:44 -07:00
commit c9a03c1246
1 changed files with 4 additions and 5 deletions
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9
drivers/target/iscsi/iscsi_target_login.c
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@ -1163,12 +1163,11 @@ static int __iscsi_target_login_thread(struct iscsi_np *np)
if (np->np_thread_state == ISCSI_NP_THREAD_RESET) {
spin_unlock_bh(&np->np_thread_lock);
complete(&np->np_restart_comp);
if (ret == -ENODEV) {
iscsit_put_transport(conn->conn_transport);
kfree(conn);
conn = NULL;
iscsit_put_transport(conn->conn_transport);
kfree(conn);
conn = NULL;
if (ret == -ENODEV)
goto out;
}
/* Get another socket */
return 1;
}