IB/srp: Improve an error path

Avoid that the following message is printed if login fails:

scsi host0: ib_srp: Sending CM DREQ failed
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Israel Rukshin <israelr@mellanox.com>
Cc: Max Gurtovoy <maxg@mellanox.com>
Cc: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/ulp/srp/ib_srp.c

@@ -3440,7 +3440,7 @@ static ssize_t srp_create_target(struct device *dev,
 					     target->ch_count,
 					     ch->target->orig_dgid.raw);
 				if (node_idx == 0 && cpu_idx == 0) {
-					goto err_disconnect;
+					goto free_ch;
 				} else {
 					srp_free_ch_ib(target, ch);
 					srp_free_req_data(target, ch);
@@ -3487,6 +3487,7 @@ static ssize_t srp_create_target(struct device *dev,
 err_disconnect:
 	srp_disconnect_target(target);
 
+free_ch:
 	for (i = 0; i < target->ch_count; i++) {
 		ch = &target->ch[i];
 		srp_free_ch_ib(target, ch);