UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

riscom8: Prepare for BKL pushdown 

Push the locking down into a couple of functions that need it and remove
bogus TIOCG/SSOFTCAR handling

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox 2008-04-30 00:53:21 -07:00 committed by Linus Torvalds
parent 9d6d162d49
commit eb17455296
1 changed files with 11 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/char/riscom8.c
View File

@ -1385,7 +1385,7 @@ static int rc_ioctl(struct tty_struct * tty, struct file * filp,
{
struct riscom_port *port = (struct riscom_port *)tty->driver_data;
void __user *argp = (void __user *)arg;
int retval;
int retval = 0;
if (rc_paranoia_check(port, tty->name, "rc_ioctl"))
return -ENODEV;
@ -1406,23 +1406,20 @@ static int rc_ioctl(struct tty_struct * tty, struct file * filp,
tty_wait_until_sent(tty, 0);
rc_send_break(port, arg ? arg*(HZ/10) : HZ/4);
break;
case TIOCGSOFTCAR:
return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned __user *)argp);
case TIOCSSOFTCAR:
if (get_user(arg,(unsigned __user *) argp))
return -EFAULT;
tty->termios->c_cflag =
((tty->termios->c_cflag & ~CLOCAL) |
(arg ? CLOCAL : 0));
case TIOCGSERIAL:
lock_kernel();
retval = rc_get_serial_info(port, argp);
unlock_kernel();
break;
case TIOCGSERIAL:
return rc_get_serial_info(port, argp);
case TIOCSSERIAL:
return rc_set_serial_info(port, argp);
lock_kernel();
retval = rc_set_serial_info(port, argp);
unlock_kernel();
break;
default:
return -ENOIOCTLCMD;
retval = -ENOIOCTLCMD;
}
return 0;
return retval;
}
static void rc_throttle(struct tty_struct * tty)