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authorAlan Cox <alan@linux.intel.com>2010-06-01 22:52:49 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-10 13:47:40 -0700
commit7479db07011c9c85a65eeb03724193230af0a99d (patch)
treed4020fc59b97fb25e48fddb0825df6d15a34c73d /drivers/char/specialix.c
parent7cc34fd028ef35b12fec0fa9268c37c099d33bd2 (diff)
specialix: Kill the BKL
Use the port mutex instead Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/char/specialix.c')
-rw-r--r--drivers/char/specialix.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c
index 2c24fcdc722..7be456f760c 100644
--- a/drivers/char/specialix.c
+++ b/drivers/char/specialix.c
@@ -1863,8 +1863,7 @@ static int sx_set_serial_info(struct specialix_port *port,
return -EFAULT;
}
- lock_kernel();
-
+ mutex_lock(&port->port.mutex);
change_speed = ((port->port.flags & ASYNC_SPD_MASK) !=
(tmp.flags & ASYNC_SPD_MASK));
change_speed |= (tmp.custom_divisor != port->custom_divisor);
@@ -1875,7 +1874,7 @@ static int sx_set_serial_info(struct specialix_port *port,
((tmp.flags & ~ASYNC_USR_MASK) !=
(port->port.flags & ~ASYNC_USR_MASK))) {
func_exit();
- unlock_kernel();
+ mutex_unlock(&port->port.mutex);
return -EPERM;
}
port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
@@ -1892,7 +1891,7 @@ static int sx_set_serial_info(struct specialix_port *port,
sx_change_speed(bp, port);
func_exit();
- unlock_kernel();
+ mutex_unlock(&port->port.mutex);
return 0;
}
@@ -1906,7 +1905,7 @@ static int sx_get_serial_info(struct specialix_port *port,
func_enter();
memset(&tmp, 0, sizeof(tmp));
- lock_kernel();
+ mutex_lock(&port->port.mutex);
tmp.type = PORT_CIRRUS;
tmp.line = port - sx_port;
tmp.port = bp->base;
@@ -1917,7 +1916,7 @@ static int sx_get_serial_info(struct specialix_port *port,
tmp.closing_wait = port->port.closing_wait * HZ/100;
tmp.custom_divisor = port->custom_divisor;
tmp.xmit_fifo_size = CD186x_NFIFO;
- unlock_kernel();
+ mutex_unlock(&port->port.mutex);
if (copy_to_user(retinfo, &tmp, sizeof(tmp))) {
func_exit();
return -EFAULT;