Input: cyttsp - use PTR_ERR_OR_ZERO()

The PTR_ERR_OR_ZERO() helper function checks if a pointer contains an
errno code and returns it or return 0 if that's not the case. Use the
helper instead of open coding the same logic in the driver. This was
found with make coccicheck that complains with the following warning:

drivers/input/touchscreen/cyttsp4_i2c.c:53:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/touchscreen/cyttsp4_i2c.c b/drivers/input/touchscreen/cyttsp4_i2c.c
index a9f95c7d3c0066cbd257b80755efdbe683340dbf..564e49002d5d61ae5632ac830a4bb0f3f05c32e2 100644 (file)
--- a/drivers/input/touchscreen/cyttsp4_i2c.c
+++ b/drivers/input/touchscreen/cyttsp4_i2c.c
@@ -50,10 +50,7 @@ static int cyttsp4_i2c_probe(struct i2c_client *client,
        ts = cyttsp4_probe(&cyttsp4_i2c_bus_ops, &client->dev, client->irq,
                          CYTTSP4_I2C_DATA_SIZE);
 
-       if (IS_ERR(ts))
-               return PTR_ERR(ts);
-
-       return 0;
+       return PTR_ERR_OR_ZERO(ts);
 }
 
 static int cyttsp4_i2c_remove(struct i2c_client *client)