IB/cma: Fix reversed test

This test looks reverted.
We should log an error message only if 'ib_attach_mcast()' fails.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Christophe Jaillet 2017-01-27 14:15:35 +01:00 • committed by Doug Ledford
commit a3dd3a48a5