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authorLinus Torvalds <torvalds@linux-foundation.org>2013-03-03 13:23:02 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-03-03 13:23:03 -0800
commit56a79b7b021bf1b08334e63c2c14b280e2dbf47a (patch)
tree0419233e6194f4f12073c9284852885aa8984bec /drivers/tty
parent1c82315a12144cde732636e259d39e3ee81b3c5b (diff)
parentdcf787f39162ce32ca325b3e784aba2d2444619a (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more VFS bits from Al Viro: "Unfortunately, it looks like xattr series will have to wait until the next cycle ;-/ This pile contains 9p cleanups and fixes (races in v9fs_fid_add() etc), fixup for nommu breakage in shmem.c, several cleanups and a bit more file_inode() work" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: constify path_get/path_put and fs_struct.c stuff fix nommu breakage in shmem.c cache the value of file_inode() in struct file 9p: if v9fs_fid_lookup() gets to asking server, it'd better have hashed dentry 9p: make sure ->lookup() adds fid to the right dentry 9p: untangle ->lookup() a bit 9p: double iput() in ->lookup() if d_materialise_unique() fails 9p: v9fs_fid_add() can't fail now v9fs: get rid of v9fs_dentry 9p: turn fid->dlist into hlist 9p: don't bother with private lock in ->d_fsdata; dentry->d_lock will do just fine more file_inode() open-coded instances selinux: opened file can't have NULL or negative ->f_path.dentry (In the meantime, the hlist traversal macros have changed, so this required a semantic conflict fixup for the newly hlistified fid->dlist)
Diffstat (limited to 'drivers/tty')
-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) {