From bdf183aa47dcb46782e22ebd4d1061e47ad74b14 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 30 Apr 2008 00:53:21 -0700 Subject: rocket: Prepare for BKL pushdown Wrap the ioctl code in lock_kernel calls Signed-off-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/rocket.c | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c index f585bc8579e9..1b3fc6fd358e 100644 --- a/drivers/char/rocket.c +++ b/drivers/char/rocket.c @@ -1433,29 +1433,38 @@ static int rp_ioctl(struct tty_struct *tty, struct file *file, { struct r_port *info = (struct r_port *) tty->driver_data; void __user *argp = (void __user *)arg; + int ret = 0; if (cmd != RCKP_GET_PORTS && rocket_paranoia_check(info, "rp_ioctl")) return -ENXIO; + lock_kernel(); + switch (cmd) { case RCKP_GET_STRUCT: if (copy_to_user(argp, info, sizeof (struct r_port))) - return -EFAULT; - return 0; + ret = -EFAULT; + break; case RCKP_GET_CONFIG: - return get_config(info, argp); + ret = get_config(info, argp); + break; case RCKP_SET_CONFIG: - return set_config(info, argp); + ret = set_config(info, argp); + break; case RCKP_GET_PORTS: - return get_ports(info, argp); + ret = get_ports(info, argp); + break; case RCKP_RESET_RM2: - return reset_rm2(info, argp); + ret = reset_rm2(info, argp); + break; case RCKP_GET_VERSION: - return get_version(info, argp); + ret = get_version(info, argp); + break; default: - return -ENOIOCTLCMD; + ret = -ENOIOCTLCMD; } - return 0; + unlock_kernel(); + return ret; } static void rp_send_xchar(struct tty_struct *tty, char ch) -- cgit v1.2.3