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>

1 files changed, 10 insertions, 12 deletions

diff --git a/drivers/tty/serial/sunhv.c b/drivers/tty/serial/sunhv.c
index cf86e729532b..dc697cee248a 100644
--- a/drivers/tty/serial/sunhv.c
+++ b/drivers/tty/serial/sunhv.c
@@ -433,13 +433,10 @@ static void sunhv_console_write_paged(struct console *con, const char *s, unsign
         unsigned long flags;
         int locked = 1;
 
-        local_irq_save(flags);
-        if (port->sysrq) {
-                locked = 0;
-        } else if (oops_in_progress) {
-                locked = spin_trylock(&port->lock);
-        } else
-                spin_lock(&port->lock);
+        if (port->sysrq || oops_in_progress)
+                locked = spin_trylock_irqsave(&port->lock, flags);
+        else
+                spin_lock_irqsave(&port->lock, flags);
 
         while (n > 0) {
                 unsigned long ra = __pa(con_write_page);
@@ -470,8 +467,7 @@ static void sunhv_console_write_paged(struct console *con, const char *s, unsign
         }
 
         if (locked)
-                spin_unlock(&port->lock);
-        local_irq_restore(flags);
+                spin_unlock_irqrestore(&port->lock, flags);
 }
 
 static inline void sunhv_console_putchar(struct uart_port *port, char c)
@@ -492,7 +488,10 @@ static void sunhv_console_write_bychar(struct console *con, const char *s, unsig
         unsigned long flags;
         int i, locked = 1;
 
-        local_irq_save(flags);
+        if (port->sysrq || oops_in_progress)
+                locked = spin_trylock_irqsave(&port->lock, flags);
+        else
+                spin_lock_irqsave(&port->lock, flags);
         if (port->sysrq) {
                 locked = 0;
         } else if (oops_in_progress) {
@@ -507,8 +506,7 @@ static void sunhv_console_write_bychar(struct console *con, const char *s, unsig
         }
 
         if (locked)
-                spin_unlock(&port->lock);
-        local_irq_restore(flags);
+                spin_unlock_irqrestore(&port->lock, flags);
 }
 
 static struct console sunhv_console = {