Input: rotary-encoder - constify platform data pointers
Drivers should not be changing platform data attached to the device
because they do not own it.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
index e261ad4..ea51265 100644
--- a/drivers/input/misc/rotary_encoder.c
+++ b/drivers/input/misc/rotary_encoder.c
@@ -29,7 +29,7 @@
struct rotary_encoder {
struct input_dev *input;
- struct rotary_encoder_platform_data *pdata;
+ const struct rotary_encoder_platform_data *pdata;
unsigned int axis;
unsigned int pos;
@@ -43,7 +43,7 @@
char last_stable;
};
-static int rotary_encoder_get_state(struct rotary_encoder_platform_data *pdata)
+static int rotary_encoder_get_state(const struct rotary_encoder_platform_data *pdata)
{
int a = !!gpio_get_value(pdata->gpio_a);
int b = !!gpio_get_value(pdata->gpio_b);
@@ -56,7 +56,7 @@
static void rotary_encoder_report_event(struct rotary_encoder *encoder)
{
- struct rotary_encoder_platform_data *pdata = encoder->pdata;
+ const struct rotary_encoder_platform_data *pdata = encoder->pdata;
if (pdata->relative_axis) {
input_report_rel(encoder->input,
@@ -142,10 +142,10 @@
static int __devinit rotary_encoder_probe(struct platform_device *pdev)
{
- struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+ struct device *dev = &pdev->dev;
+ const struct rotary_encoder_platform_data *pdata = dev_get_platdata(dev);
struct rotary_encoder *encoder;
struct input_dev *input;
- struct device *dev = &pdev->dev;
irq_handler_t handler;
int err;
@@ -247,7 +247,7 @@
static int __devexit rotary_encoder_remove(struct platform_device *pdev)
{
struct rotary_encoder *encoder = platform_get_drvdata(pdev);
- struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+ const struct rotary_encoder_platform_data *pdata = encoder->pdata;
free_irq(encoder->irq_a, encoder);
free_irq(encoder->irq_b, encoder);