This driver creates two const structures that it stores in the data
field of an of_device_id array.
The data field of an of_device_id structure has type const void *, so
there is no need for a const-discarding cast when putting const values
into such a structure.
Furthermore, adding const to the declaration of the location that
receives a const value from such a field ensures that the compiler
will continue to check that the value is not modified. The
const-discarding cast on the extraction from the data field is thus
no longer needed.
Done using Coccinelle.
Signed-off-by: Julia Lawall <julia.law...@lip6.fr>
---
drivers/power/supply/axp20x_ac_power.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff -u -p a/drivers/power/supply/axp20x_ac_power.c
b/drivers/power/supply/axp20x_ac_power.c
--- a/drivers/power/supply/axp20x_ac_power.c
+++ b/drivers/power/supply/axp20x_ac_power.c
@@ -159,7 +159,7 @@ static int axp20x_ac_power_probe(struct
struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
struct power_supply_config psy_cfg = {};
struct axp20x_ac_power *power;
- struct axp_data *axp_data;
+ const struct axp_data *axp_data;
static const char * const irq_names[] = { "ACIN_PLUGIN", "ACIN_REMOVAL",
NULL };
int i, irq, ret;
@@ -176,7 +176,7 @@ static int axp20x_ac_power_probe(struct
if (!power)
return -ENOMEM;
- axp_data = (struct axp_data *)of_device_get_match_data(&pdev->dev);
+ axp_data = of_device_get_match_data(&pdev->dev);
if (axp_data->acin_adc) {
power->acin_v = devm_iio_channel_get(&pdev->dev, "acin_v");
@@ -230,10 +230,10 @@ static int axp20x_ac_power_probe(struct
static const struct of_device_id axp20x_ac_power_match[] = {
{
.compatible = "x-powers,axp202-ac-power-supply",
- .data = (void *)&axp20x_data,
+ .data = &axp20x_data,
}, {
.compatible = "x-powers,axp221-ac-power-supply",
- .data = (void *)&axp22x_data,
+ .data = &axp22x_data,
}, { /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, axp20x_ac_power_match);
