Use rcu_dereference_protected in order to prevent lockdep
complaint. Sequel of the patch 863555be
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Denis Efremov <yefremov.denis@xxxxxxxxx>
---
drivers/target/tcm_fc/tfc_sess.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c
index 87901fa..3c9e5b5 100644
--- a/drivers/target/tcm_fc/tfc_sess.c
+++ b/drivers/target/tcm_fc/tfc_sess.c
@@ -456,7 +456,9 @@ static void ft_prlo(struct fc_rport_priv *rdata)
struct ft_tport *tport;
mutex_lock(&ft_lport_lock);
- tport = rcu_dereference(rdata->local_port->prov[FC_TYPE_FCP]);
+ tport = rcu_dereference_protected(rdata->local_port->prov[FC_TYPE_FCP],
+ lockdep_is_held(&ft_lport_lock));
+
if (!tport) {
mutex_unlock(&ft_lport_lock);
return;
--
1.7.7
--
To unsubscribe from this list: send the line "unsubscribe target-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
