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authorDavid Miller <davem@davemloft.net>2014-03-04 15:28:35 -0500
committerDavid S. Miller <davem@davemloft.net>2014-03-06 16:32:25 -0500
commite58e241c1788856f69d58821e91e5c988905252d (patch)
treeaf65c5c6385b28fc4d9af976f0fe8430fdf8429e /drivers/tty/serial/sunzilog.c
parentc3bebc71c4bcdafa24b506adf0c1de3c1f77e2e0 (diff)
downloadop-kernel-dev-e58e241c1788856f69d58821e91e5c988905252d.zip
op-kernel-dev-e58e241c1788856f69d58821e91e5c988905252d.tar.gz
sparc: serial: Clean up the locking for -rt
Signed-off-by: David S. Miller <davem@davemloft.net> Tested-by: Allen Pais <allen.pais@oracle.com>
Diffstat (limited to 'drivers/tty/serial/sunzilog.c')
-rw-r--r--drivers/tty/serial/sunzilog.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index 45a8c6a..a2c40ed 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -1195,20 +1195,16 @@ sunzilog_console_write(struct console *con, const char *s, unsigned int count)
unsigned long flags;
int locked = 1;
- local_irq_save(flags);
- if (up->port.sysrq) {
- locked = 0;
- } else if (oops_in_progress) {
- locked = spin_trylock(&up->port.lock);
- } else
- spin_lock(&up->port.lock);
+ if (up->port.sysrq || oops_in_progress)
+ locked = spin_trylock_irqsave(&up->port.lock, flags);
+ else
+ spin_lock_irqsave(&up->port.lock, flags);
uart_console_write(&up->port, s, count, sunzilog_putchar);
udelay(2);
if (locked)
- spin_unlock(&up->port.lock);
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&up->port.lock, flags);
}
static int __init sunzilog_console_setup(struct console *con, char *options)
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