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auxdisplay: ht16k33: remove private workqueue

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There is no need for the driver to use private workqueue, standard system
workqueue should suffice as they are going to use the same worker pool
anyway.

Acked-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Torokhov 2017-02-09 10:15:53 -08:00 committed by Greg Kroah-Hartman
parent cac513f1a9
commit 8fa8bea728
1 changed files with 5 additions and 15 deletions
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20
drivers/auxdisplay/ht16k33.c
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@ -80,7 +80,6 @@ struct ht16k33_priv {
struct i2c_client *client;
struct ht16k33_keypad keypad;
struct ht16k33_fbdev fbdev;
struct workqueue_struct *workqueue;
};
static struct fb_fix_screeninfo ht16k33_fb_fix = {
@ -126,8 +125,8 @@ static void ht16k33_fb_queue(struct ht16k33_priv *priv)
{
struct ht16k33_fbdev *fbdev = &priv->fbdev;
queue_delayed_work(priv->workqueue, &fbdev->work,
msecs_to_jiffies(HZ / fbdev->refresh_rate));
schedule_delayed_work(&fbdev->work,
msecs_to_jiffies(HZ / fbdev->refresh_rate));
}
/*
@ -414,21 +413,15 @@ static int ht16k33_probe(struct i2c_client *client,
i2c_set_clientdata(client, priv);
fbdev = &priv->fbdev;
priv->workqueue = create_singlethread_workqueue(DRIVER_NAME "-wq");
if (priv->workqueue == NULL)
return -ENOMEM;
err = ht16k33_initialize(priv);
if (err)
goto err_destroy_wq;
return err;
/* Framebuffer (2 bytes per column) */
BUILD_BUG_ON(PAGE_SIZE < HT16K33_FB_SIZE);
fbdev->buffer = (unsigned char *) get_zeroed_page(GFP_KERNEL);
if (!fbdev->buffer) {
err = -ENOMEM;
goto err_destroy_wq;
}
if (!fbdev->buffer)
return -ENOMEM;
fbdev->cache = devm_kmalloc(&client->dev, HT16K33_FB_SIZE, GFP_KERNEL);
if (!fbdev->cache) {
@ -505,8 +498,6 @@ err_fbdev_info:
framebuffer_release(fbdev->info);
err_fbdev_buffer:
free_page((unsigned long) fbdev->buffer);
err_destroy_wq:
destroy_workqueue(priv->workqueue);
return err;
}
@ -521,7 +512,6 @@ static int ht16k33_remove(struct i2c_client *client)
framebuffer_release(fbdev->info);
free_page((unsigned long) fbdev->buffer);
destroy_workqueue(priv->workqueue);
return 0;
}