Merge tag 'pull-filename' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs 'struct filename' updates from Al Viro:
 "[Mostly] sanitize struct filename handling"

* tag 'pull-filename' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (68 commits)
  sysfs(2): fs_index() argument is _not_ a pathname
  alpha: switch osf_mount() to strndup_user()
  ksmbd: use CLASS(filename_kernel)
  mqueue: switch to CLASS(filename)
  user_statfs(): switch to CLASS(filename)
  statx: switch to CLASS(filename_maybe_null)
  quotactl_block(): switch to CLASS(filename)
  chroot(2): switch to CLASS(filename)
  move_mount(2): switch to CLASS(filename_maybe_null)
  namei.c: switch user pathname imports to CLASS(filename{,_flags})
  namei.c: convert getname_kernel() callers to CLASS(filename_kernel)
  do_f{chmod,chown,access}at(): use CLASS(filename_uflags)
  do_readlinkat(): switch to CLASS(filename_flags)
  do_sys_truncate(): switch to CLASS(filename)
  do_utimes_path(): switch to CLASS(filename_uflags)
  chdir(2): unspaghettify a bit...
  do_fchownat(): unspaghettify a bit...
  fspick(2): use CLASS(filename_flags)
  name_to_handle_at(): use CLASS(filename_uflags)
  vfs_open_tree(): use CLASS(filename_uflags)
  ...

1 files changed, 11 insertions, 23 deletions

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index a08e8edef1a4..7b6543d2cca3 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -454,42 +454,30 @@ static int
 osf_ufs_mount(const char __user *dirname,
 	      struct ufs_args __user *args, int flags)
 {
-	int retval;
-	struct cdfs_args tmp;
-	struct filename *devname;
+	struct ufs_args tmp;
+	char *devname __free(kfree) = NULL;
 
-	retval = -EFAULT;
 	if (copy_from_user(&tmp, args, sizeof(tmp)))
-		goto out;
-	devname = getname(tmp.devname);
-	retval = PTR_ERR(devname);
+		return -EFAULT;
+	devname = strndup_user(tmp.devname, PATH_MAX);
 	if (IS_ERR(devname))
-		goto out;
-	retval = do_mount(devname->name, dirname, "ext2", flags, NULL);
-	putname(devname);
- out:
-	return retval;
+		return PTR_ERR(devname);
+	return do_mount(devname, dirname, "ext2", flags, NULL);
 }
 
 static int
 osf_cdfs_mount(const char __user *dirname,
 	       struct cdfs_args __user *args, int flags)
 {
-	int retval;
 	struct cdfs_args tmp;
-	struct filename *devname;
+	char *devname __free(kfree) = NULL;
 
-	retval = -EFAULT;
 	if (copy_from_user(&tmp, args, sizeof(tmp)))
-		goto out;
-	devname = getname(tmp.devname);
-	retval = PTR_ERR(devname);
+		return -EFAULT;
+	devname = strndup_user(tmp.devname, PATH_MAX);
 	if (IS_ERR(devname))
-		goto out;
-	retval = do_mount(devname->name, dirname, "iso9660", flags, NULL);
-	putname(devname);
- out:
-	return retval;
+		return PTR_ERR(devname);
+	return do_mount(devname, dirname, "iso9660", flags, NULL);
 }
 
 static int