1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index 5f5214c0337d..224c93dd29eb 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -399,7 +399,7 @@ static int to_ib_qp_access_flags(int mthca_flags)
 static void to_ib_ah_attr(struct mthca_dev *dev, struct ib_ah_attr *ib_ah_attr,
                                 struct mthca_qp_path *path)
 {
-        memset(ib_ah_attr, 0, sizeof *path);
+        memset(ib_ah_attr, 0, sizeof *ib_ah_attr);
         ib_ah_attr->port_num      = (be32_to_cpu(path->port_pkey) >> 24) & 0x3;
 
         if (ib_ah_attr->port_num == 0 || ib_ah_attr->port_num > dev->limits.num_ports)