Running two wka_port_get calls in parallel could issue two open_port
requests, overwriting the port handle. Don't issue an open_port
for the state PORT_OPENING, and only read the data from GOOD
responses.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
if (mutex_lock_interruptible(&wka_port->mutex))
return -ERESTARTSYS;
- if (wka_port->status != ZFCP_WKA_PORT_ONLINE) {
+ if (wka_port->status == ZFCP_WKA_PORT_OFFLINE ||
+ wka_port->status == ZFCP_WKA_PORT_CLOSING) {
wka_port->status = ZFCP_WKA_PORT_OPENING;
if (zfcp_fsf_open_wka_port(wka_port))
wka_port->status = ZFCP_WKA_PORT_OFFLINE;
wka_port->status = ZFCP_WKA_PORT_OFFLINE;
break;
case FSF_PORT_ALREADY_OPEN:
+ break;
case FSF_GOOD:
wka_port->handle = header->port_handle;
wka_port->status = ZFCP_WKA_PORT_ONLINE;