1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/staging/dream/synaptics_i2c_rmi.c b/drivers/staging/dream/synaptics_i2c_rmi.c
index ae696d3bc8e..4de6bc91759 100644
--- a/drivers/staging/dream/synaptics_i2c_rmi.c
+++ b/drivers/staging/dream/synaptics_i2c_rmi.c
@@ -379,6 +379,12 @@ static int __devinit synaptics_ts_probe(
                 goto err_check_functionality_failed;
         }
 
+        if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA)) {
+                pr_err("synaptics_ts_probe: need I2C_FUNC_SMBUS_WORD_DATA\n");
+                ret = -ENODEV;
+                goto err_check_functionality_failed;
+        }
+
         ts = kzalloc(sizeof(*ts), GFP_KERNEL);
         if (ts == NULL) {
                 ret = -ENOMEM;