IB/srp: Fix reconnection failure handling

Although it is possible to let SRP I/O continue if a reconnect
results in a reduction of the number of channels, the current
code does not handle this scenario correctly. Instead of making
the reconnect code more complex, consider this as a reconnection
failure.

Signed-off-by: Bart Van Assche <[email protected]>
Cc: Sagi Grimberg <[email protected]>
Cc: Sebastian Parschauer <[email protected]>
Cc: <[email protected]> #v3.19
Signed-off-by: Doug Ledford <[email protected]>

Author: Bart Van Assche

drivers/infiniband/ulp/srp/ib_srp.c

@@ -1243,11 +1243,8 @@ static int srp_rport_reconnect(struct srp_rport *rport)
 
 	for (i = 0; i < target->ch_count; i++) {
 		ch = &target->ch[i];
-		if (ret || !ch->target) {
-			if (i > 1)
-				ret = 0;
+		if (ret || !ch->target)
 			break;
-		}
 		ret = srp_connect_ch(ch, multich);
 		multich = true;
 	}