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i2c: mux: pca954x: merge calls to of_match_device and of_device_get_match_data

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Drop call to of_match_device, which is subsumed by the subsequent
call to of_device_get_match_data.  The code becomes simpler, and a
temporary variable can be dropped.

The semantic match that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
local idexpression match;
identifier i;
expression x, dev, e, e1;
@@
-        match@i = of_match_device(x, dev);
-        if (match) e = of_device_get_match_data(dev);
-        else e = e1;
+        e = of_device_get_match_data(dev);
+        if (!e) e = e1;

@@
identifier r.i;
@@
- const struct of_device_id *i;
... when != i
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Peter Rosin <peda@axentia.se>
This commit is contained in:
Julia Lawall 2018-05-21 11:49:08 +02:00 committed by Peter Rosin
parent 5a9dcd8190
commit b10d7a1fd6
1 changed files with 2 additions and 5 deletions
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7
drivers/i2c/muxes/i2c-mux-pca954x.c
View file

@ -374,7 +374,6 @@ static int pca954x_probe(struct i2c_client *client,
int num, force, class;
struct i2c_mux_core *muxc;
struct pca954x *data;
const struct of_device_id *match;
int ret;
if (!i2c_check_functionality(adap, I2C_FUNC_SMBUS_BYTE))
@ -401,10 +400,8 @@ static int pca954x_probe(struct i2c_client *client,
udelay(1);
}
match = of_match_device(of_match_ptr(pca954x_of_match), &client->dev);
if (match)
data->chip = of_device_get_match_data(&client->dev);
else
data->chip = of_device_get_match_data(&client->dev);
if (!data->chip)
data->chip = &chips[id->driver_data];
if (data->chip->id.manufacturer_id != I2C_DEVICE_ID_NONE) {