IB/sa: Error handling thinko fix

ib_create_send_mad() returns an error code pointer on error, not NULL.

Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index d271bd715c12..312c8ff5ae88 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -531,7 +531,7 @@ static int alloc_mad(struct ib_sa_query *query, gfp_t gfp_mask)
                                             query->sm_ah->pkey_index,
                                             0, IB_MGMT_SA_HDR, IB_MGMT_SA_DATA,
                                             gfp_mask);
-        if (!query->mad_buf) {
+        if (IS_ERR(query->mad_buf)) {
                 kref_put(&query->sm_ah->ref, free_sm_ah);
                 return -ENOMEM;
         }