i2c: add error message when obtaining idr fails

[cascardo/linux.git] / drivers / i2c / i2c-core.c

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 8e07e3b..1a91b51 100644 (file)
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1684,13 +1684,12 @@ out_list:
  */
 static int __i2c_add_numbered_adapter(struct i2c_adapter *adap)
 {
-       int     id;
+       int id;
 
        mutex_lock(&core_lock);
-       id = idr_alloc(&i2c_adapter_idr, adap, adap->nr, adap->nr + 1,
-                      GFP_KERNEL);
+       id = idr_alloc(&i2c_adapter_idr, adap, adap->nr, adap->nr + 1, GFP_KERNEL);
        mutex_unlock(&core_lock);
-       if (id < 0)
+       if (WARN(id < 0, "couldn't get idr"))
                return id == -ENOSPC ? -EBUSY : id;
 
        return i2c_register_adapter(adap);
@@ -1727,7 +1726,7 @@ int i2c_add_adapter(struct i2c_adapter *adapter)
        id = idr_alloc(&i2c_adapter_idr, adapter,
                       __i2c_first_dynamic_bus_num, 0, GFP_KERNEL);
        mutex_unlock(&core_lock);
-       if (id < 0)
+       if (WARN(id < 0, "couldn't get idr"))
                return id;
 
        adapter->nr = id;