X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fchar%2Fvc_screen.c;h=4f3b3f95fc42b4bb7bcf03a561aa5f69c48a393d;hb=aaad430378dd128ee015c8ed6e77809317c496a5;hp=45e9bd81bc0ed2cb4cdf8d8ee6407cfac7696cb5;hpb=6ab3d5624e172c553004ecc862bfeac16d9d68b7;p=safe%2Fjmp%2Flinux-2.6

diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c
index 45e9bd8..4f3b3f9 100644
--- a/drivers/char/vc_screen.c
+++ b/drivers/char/vc_screen.c
@@ -25,16 +25,17 @@
 #include <linux/major.h>
 #include <linux/errno.h>
 #include <linux/tty.h>
-#include <linux/sched.h>
 #include <linux/interrupt.h>
 #include <linux/mm.h>
 #include <linux/init.h>
+#include <linux/mutex.h>
 #include <linux/vt_kern.h>
 #include <linux/selection.h>
 #include <linux/kbd_kern.h>
 #include <linux/console.h>
-#include <linux/smp_lock.h>
 #include <linux/device.h>
+#include <linux/smp_lock.h>
+
 #include <asm/uaccess.h>
 #include <asm/byteorder.h>
 #include <asm/unaligned.h>
@@ -71,11 +72,11 @@ static loff_t vcs_lseek(struct file *file, loff_t offset, int orig)
 {
 	int size;
 
-	down(&con_buf_sem);
-	size = vcs_size(file->f_dentry->d_inode);
+	mutex_lock(&con_buf_mtx);
+	size = vcs_size(file->f_path.dentry->d_inode);
 	switch (orig) {
 		default:
-			up(&con_buf_sem);
+			mutex_unlock(&con_buf_mtx);
 			return -EINVAL;
 		case 2:
 			offset += size;
@@ -86,11 +87,11 @@ static loff_t vcs_lseek(struct file *file, loff_t offset, int orig)
 			break;
 	}
 	if (offset < 0 || offset > size) {
-		up(&con_buf_sem);
+		mutex_unlock(&con_buf_mtx);
 		return -EINVAL;
 	}
 	file->f_pos = offset;
-	up(&con_buf_sem);
+	mutex_unlock(&con_buf_mtx);
 	return file->f_pos;
 }
 
@@ -98,7 +99,7 @@ static loff_t vcs_lseek(struct file *file, loff_t offset, int orig)
 static ssize_t
 vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 {
-	struct inode *inode = file->f_dentry->d_inode;
+	struct inode *inode = file->f_path.dentry->d_inode;
 	unsigned int currcons = iminor(inode);
 	struct vc_data *vc;
 	long pos;
@@ -107,7 +108,7 @@ vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 	unsigned short *org = NULL;
 	ssize_t ret;
 
-	down(&con_buf_sem);
+	mutex_lock(&con_buf_mtx);
 
 	pos = *ppos;
 
@@ -264,14 +265,14 @@ vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 		ret = read;
 unlock_out:
 	release_console_sem();
-	up(&con_buf_sem);
+	mutex_unlock(&con_buf_mtx);
 	return ret;
 }
 
 static ssize_t
 vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
 {
-	struct inode *inode = file->f_dentry->d_inode;
+	struct inode *inode = file->f_path.dentry->d_inode;
 	unsigned int currcons = iminor(inode);
 	struct vc_data *vc;
 	long pos;
@@ -281,7 +282,7 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
 	u16 *org0 = NULL, *org = NULL;
 	size_t ret;
 
-	down(&con_buf_sem);
+	mutex_lock(&con_buf_mtx);
 
 	pos = *ppos;
 
@@ -451,7 +452,7 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
 unlock_out:
 	release_console_sem();
 
-	up(&con_buf_sem);
+	mutex_unlock(&con_buf_mtx);
 
 	return ret;
 }
@@ -460,12 +461,16 @@ static int
 vcs_open(struct inode *inode, struct file *filp)
 {
 	unsigned int currcons = iminor(inode) & 127;
+	int ret = 0;
+	
+	lock_kernel();
 	if(currcons && !vc_cons_allocated(currcons-1))
-		return -ENXIO;
-	return 0;
+		ret = -ENXIO;
+	unlock_kernel();
+	return ret;
 }
 
-static struct file_operations vcs_fops = {
+static const struct file_operations vcs_fops = {
 	.llseek		= vcs_lseek,
 	.read		= vcs_read,
 	.write		= vcs_write,
@@ -474,17 +479,18 @@ static struct file_operations vcs_fops = {
 
 static struct class *vc_class;
 
-void vcs_make_devfs(struct tty_struct *tty)
+void vcs_make_sysfs(struct tty_struct *tty)
 {
-	class_device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1),
-			NULL, "vcs%u", tty->index + 1);
-	class_device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129),
-			NULL, "vcsa%u", tty->index + 1);
+	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1), NULL,
+		      "vcs%u", tty->index + 1);
+	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129), NULL,
+		      "vcsa%u", tty->index + 1);
 }
-void vcs_remove_devfs(struct tty_struct *tty)
+
+void vcs_remove_sysfs(struct tty_struct *tty)
 {
-	class_device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 1));
-	class_device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 129));
+	device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 1));
+	device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 129));
 }
 
 int __init vcs_init(void)
@@ -493,7 +499,7 @@ int __init vcs_init(void)
 		panic("unable to get major %d for vcs device", VCS_MAJOR);
 	vc_class = class_create(THIS_MODULE, "vc");
 
-	class_device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), NULL, "vcs");
-	class_device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), NULL, "vcsa");
+	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), NULL, "vcs");
+	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), NULL, "vcsa");
 	return 0;
 }