Input: apanel - switch to using brightness_set_blocking()

Now that LEDs core allows "blocking" flavor of "set brightness" method we
can use it and get rid of private work item. As a bonus, we are no longer
forgetting to cancel it when we unbind the driver.

Reviewed-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/misc/apanel.c b/drivers/input/misc/apanel.c
index 094bddf56755f11310ee18c6eb5fda33242f57ff..c1e66f45d552a3b64058611bbc8e18c741f6aad9 100644 (file)
--- a/drivers/input/misc/apanel.c
+++ b/drivers/input/misc/apanel.c
@@ -22,7 +22,6 @@
 #include <linux/io.h>
 #include <linux/input-polldev.h>
 #include <linux/i2c.h>
-#include <linux/workqueue.h>
 #include <linux/leds.h>
 
 #define APANEL_NAME    "Fujitsu Application Panel"
@@ -59,8 +58,6 @@ struct apanel {
        struct i2c_client *client;
        unsigned short keymap[MAX_PANEL_KEYS];
        u16    nkeys;
-       u16    led_bits;
-       struct work_struct led_work;
        struct led_classdev mail_led;
 };
 
@@ -109,25 +106,13 @@ static void apanel_poll(struct input_polled_dev *ipdev)
                        report_key(idev, ap->keymap[i]);
 }
 
-/* Track state changes of LED */
-static void led_update(struct work_struct *work)
-{
-       struct apanel *ap = container_of(work, struct apanel, led_work);
-
-       i2c_smbus_write_word_data(ap->client, 0x10, ap->led_bits);
-}
-
-static void mail_led_set(struct led_classdev *led,
+static int mail_led_set(struct led_classdev *led,
                         enum led_brightness value)
 {
        struct apanel *ap = container_of(led, struct apanel, mail_led);
+       u16 led_bits = value != LED_OFF ? 0x8000 : 0x0000;
 
-       if (value != LED_OFF)
-               ap->led_bits |= 0x8000;
-       else
-               ap->led_bits &= ~0x8000;
-
-       schedule_work(&ap->led_work);
+       return i2c_smbus_write_word_data(ap->client, 0x10, led_bits);
 }
 
 static int apanel_remove(struct i2c_client *client)
@@ -179,7 +164,7 @@ static struct apanel apanel = {
        },
        .mail_led = {
                .name = "mail:blue",
-               .brightness_set = mail_led_set,
+               .brightness_set_blocking = mail_led_set,
        },
 };
 
@@ -235,7 +220,6 @@ static int apanel_probe(struct i2c_client *client,
        if (err)
                goto out3;
 
-       INIT_WORK(&ap->led_work, led_update);
        if (device_chip[APANEL_DEV_LED] != CHIP_NONE) {
                err = led_classdev_register(&client->dev, &ap->mail_led);
                if (err)