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-rw-r--r--drivers/i2c/i2c-core.c2
-rw-r--r--drivers/infiniband/core/cm.c2
-rw-r--r--drivers/infiniband/hw/mlx4/cm.c2
3 files changed, 2 insertions, 4 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 8d1f644a7fdc..991d38daa87d 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -979,8 +979,6 @@ int i2c_add_numbered_adapter(struct i2c_adapter *adap)
if (adap->nr == -1) /* -1 means dynamically assign bus id */
return i2c_add_adapter(adap);
- if (adap->nr & ~MAX_IDR_MASK)
- return -EINVAL;
mutex_lock(&core_lock);
id = idr_alloc(&i2c_adapter_idr, adap, adap->nr, adap->nr + 1,
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 98281fe5ea4b..784b97cb05b0 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -390,7 +390,7 @@ static int cm_alloc_id(struct cm_id_private *cm_id_priv)
id = idr_alloc(&cm.local_id_table, cm_id_priv, next_id, 0, GFP_NOWAIT);
if (id >= 0)
- next_id = ((unsigned) id + 1) & MAX_IDR_MASK;
+ next_id = max(id + 1, 0);
spin_unlock_irqrestore(&cm.lock, flags);
idr_preload_end();
diff --git a/drivers/infiniband/hw/mlx4/cm.c b/drivers/infiniband/hw/mlx4/cm.c
index 80e59ed864b3..e0d79b2395e4 100644
--- a/drivers/infiniband/hw/mlx4/cm.c
+++ b/drivers/infiniband/hw/mlx4/cm.c
@@ -225,7 +225,7 @@ id_map_alloc(struct ib_device *ibdev, int slave_id, u32 sl_cm_id)
ret = idr_alloc(&sriov->pv_id_table, ent, next_id, 0, GFP_NOWAIT);
if (ret >= 0) {
- next_id = ((unsigned)ret + 1) & MAX_IDR_MASK;
+ next_id = max(ret + 1, 0);
ent->pv_cm_id = (u32)ret;
sl_id_map_add(ibdev, ent);
list_add_tail(&ent->list, &sriov->cm_list);