diff options
| author | Alan Cox <alan@linux.intel.com> | 2009-11-30 13:18:18 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 15:18:08 -0800 |
| commit | f710ebd7f70801e31751f2c49fe4b92a477d24eb (patch) | |
| tree | 4e1e022e477dd62b39c01fdab7fabbadc10352e8 /drivers | |
| parent | 8482bcd58530ad5857d7187854132f2b846db681 (diff) | |
| download | linux-f710ebd7f70801e31751f2c49fe4b92a477d24eb.tar.gz | |
tty: moxa: Kill the use of lock_kernel
It isn't needed here any more Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/char/moxa.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c index ac06d0131db5..d53fac5229bf 100644 --- a/drivers/char/moxa.c +++ b/drivers/char/moxa.c @@ -34,7 +34,6 @@ #include <linux/tty.h> #include <linux/tty_flip.h> #include <linux/major.h> -#include <linux/smp_lock.h> #include <linux/string.h> #include <linux/fcntl.h> #include <linux/ptrace.h> @@ -202,7 +201,6 @@ static int moxa_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); static void moxa_poll(unsigned long); static void moxa_set_tty_param(struct tty_struct *, struct ktermios *); -static void moxa_setup_empty_event(struct tty_struct *); static void moxa_shutdown(struct tty_port *); static int moxa_carrier_raised(struct tty_port *); static void moxa_dtr_rts(struct tty_port *, int); @@ -1251,17 +1249,13 @@ static int moxa_chars_in_buffer(struct tty_struct *tty) struct moxa_port *ch = tty->driver_data; int chars; - lock_kernel(); chars = MoxaPortTxQueue(ch); - if (chars) { + if (chars) /* * Make it possible to wakeup anything waiting for output * in tty_ioctl.c, etc. */ - if (!test_bit(EMPTYWAIT, &ch->statusflags)) - moxa_setup_empty_event(tty); - } - unlock_kernel(); + set_bit(EMPTYWAIT, &ch->statusflags); return chars; } @@ -1503,12 +1497,6 @@ static void moxa_set_tty_param(struct tty_struct *tty, struct ktermios *old_term tty_encode_baud_rate(tty, baud, baud); } -static void moxa_setup_empty_event(struct tty_struct *tty) -{ - struct moxa_port *ch = tty->driver_data; - set_bit(EMPTYWAIT, &ch->statusflags); -} - /***************************************************************************** * Driver level functions: * *****************************************************************************/ |