scsi: bfa: Do not dereference port before it is null checked
Port is deferenced before it is null sanity checked, hence we
potentially have a null pointer dereference bug. Instead, initialise
trl_enabled from port->fcs->bfa after we are sure port is not null.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
index 7733ad5..4ddda72 100644
--- a/drivers/scsi/bfa/bfa_fcs_lport.c
+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
@@ -5827,13 +5827,13 @@
bfa_port_speed_t max_speed = 0;
struct bfa_port_attr_s port_attr;
bfa_port_speed_t port_speed, rport_speed;
- bfa_boolean_t trl_enabled = bfa_fcport_is_ratelim(port->fcs->bfa);
-
+ bfa_boolean_t trl_enabled;
if (port == NULL)
return 0;
fcs = port->fcs;
+ trl_enabled = bfa_fcport_is_ratelim(port->fcs->bfa);
/* Get Physical port's current speed */
bfa_fcport_get_attr(port->fcs->bfa, &port_attr);