1 files changed, 0 insertions, 92 deletions
diff --git a/drivers/staging/speakup/devsynth.c b/drivers/staging/speakup/devsynth.c
deleted file mode 100644
index d30571663585..000000000000
--- a/drivers/staging/speakup/devsynth.c
+++ /dev/null
@@ -1,92 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/errno.h>
-#include <linux/miscdevice.h>	/* for misc_register, and MISC_DYNAMIC_MINOR */
-#include <linux/types.h>
-#include <linux/uaccess.h>
-
-#include "speakup.h"
-#include "spk_priv.h"
-
-static int misc_registered;
-static int dev_opened;
-
-static ssize_t speakup_file_write(struct file *fp, const char __user *buffer,
-				  size_t nbytes, loff_t *ppos)
-{
-	size_t count = nbytes;
-	const char __user *ptr = buffer;
-	size_t bytes;
-	unsigned long flags;
-	u_char buf[256];
-
-	if (!synth)
-		return -ENODEV;
-	while (count > 0) {
-		bytes = min(count, sizeof(buf));
-		if (copy_from_user(buf, ptr, bytes))
-			return -EFAULT;
-		count -= bytes;
-		ptr += bytes;
-		spin_lock_irqsave(&speakup_info.spinlock, flags);
-		synth_write(buf, bytes);
-		spin_unlock_irqrestore(&speakup_info.spinlock, flags);
-	}
-	return (ssize_t)nbytes;
-}
-
-static ssize_t speakup_file_read(struct file *fp, char __user *buf,
-				 size_t nbytes, loff_t *ppos)
-{
-	return 0;
-}
-
-static int speakup_file_open(struct inode *ip, struct file *fp)
-{
-	if (!synth)
-		return -ENODEV;
-	if (xchg(&dev_opened, 1))
-		return -EBUSY;
-	return 0;
-}
-
-static int speakup_file_release(struct inode *ip, struct file *fp)
-{
-	dev_opened = 0;
-	return 0;
-}
-
-static const struct file_operations synth_fops = {
-	.read = speakup_file_read,
-	.write = speakup_file_write,
-	.open = speakup_file_open,
-	.release = speakup_file_release,
-};
-
-static struct miscdevice synth_device = {
-	.minor = MISC_DYNAMIC_MINOR,
-	.name = "synth",
-	.fops = &synth_fops,
-};
-
-void speakup_register_devsynth(void)
-{
-	if (misc_registered != 0)
-		return;
-/* zero it so if register fails, deregister will not ref invalid ptrs */
-	if (misc_register(&synth_device)) {
-		pr_warn("Couldn't initialize miscdevice /dev/synth.\n");
-	} else {
-		pr_info("initialized device: /dev/synth, node (MAJOR %d, MINOR %d)\n",
-			MISC_MAJOR, synth_device.minor);
-		misc_registered = 1;
-	}
-}
-
-void speakup_unregister_devsynth(void)
-{
-	if (!misc_registered)
-		return;
-	pr_info("speakup: unregistering synth device /dev/synth\n");
-	misc_deregister(&synth_device);
-	misc_registered = 0;
-}