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path: root/drivers/tty/tty_io.c
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Diffstat (limited to 'drivers/tty/tty_io.c')
-rw-r--r--drivers/tty/tty_io.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index fd473639ab70..05400acbc456 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -960,11 +960,10 @@ static ssize_t tty_read(struct file *file, char __user *buf, size_t count,
loff_t *ppos)
{
int i;
- struct inode *inode = file->f_path.dentry->d_inode;
struct tty_struct *tty = file_tty(file);
struct tty_ldisc *ld;
- if (tty_paranoia_check(tty, inode, "tty_read"))
+ if (tty_paranoia_check(tty, file_inode(file), "tty_read"))
return -EIO;
if (!tty || (test_bit(TTY_IO_ERROR, &tty->flags)))
return -EIO;
@@ -1132,12 +1131,11 @@ void tty_write_message(struct tty_struct *tty, char *msg)
static ssize_t tty_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
- struct inode *inode = file->f_path.dentry->d_inode;
struct tty_struct *tty = file_tty(file);
struct tty_ldisc *ld;
ssize_t ret;
- if (tty_paranoia_check(tty, inode, "tty_write"))
+ if (tty_paranoia_check(tty, file_inode(file), "tty_write"))
return -EIO;
if (!tty || !tty->ops->write ||
(test_bit(TTY_IO_ERROR, &tty->flags)))
@@ -2047,7 +2045,7 @@ static unsigned int tty_poll(struct file *filp, poll_table *wait)
struct tty_ldisc *ld;
int ret = 0;
- if (tty_paranoia_check(tty, filp->f_path.dentry->d_inode, "tty_poll"))
+ if (tty_paranoia_check(tty, file_inode(filp), "tty_poll"))
return 0;
ld = tty_ldisc_ref_wait(tty);
@@ -2063,7 +2061,7 @@ static int __tty_fasync(int fd, struct file *filp, int on)
unsigned long flags;
int retval = 0;
- if (tty_paranoia_check(tty, filp->f_path.dentry->d_inode, "tty_fasync"))
+ if (tty_paranoia_check(tty, file_inode(filp), "tty_fasync"))
goto out;
retval = fasync_helper(fd, filp, on, &tty->fasync);
@@ -2637,9 +2635,8 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
void __user *p = (void __user *)arg;
int retval;
struct tty_ldisc *ld;
- struct inode *inode = file->f_dentry->d_inode;
- if (tty_paranoia_check(tty, inode, "tty_ioctl"))
+ if (tty_paranoia_check(tty, file_inode(file), "tty_ioctl"))
return -EINVAL;
real_tty = tty_pair_get_tty(tty);
@@ -2780,12 +2777,11 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
static long tty_compat_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
- struct inode *inode = file->f_dentry->d_inode;
struct tty_struct *tty = file_tty(file);
struct tty_ldisc *ld;
int retval = -ENOIOCTLCMD;
- if (tty_paranoia_check(tty, inode, "tty_ioctl"))
+ if (tty_paranoia_check(tty, file_inode(file), "tty_ioctl"))
return -EINVAL;
if (tty->ops->compat_ioctl) {