From f0b8a563433a1e137a9a010bee8891631afda63c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 28 Jul 2011 13:32:57 +0200 Subject: drivers-tty-fix-omap-lock-crap.patch Signed-off-by: Thomas Gleixner diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 816d1a2..22c8149 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -1232,13 +1232,10 @@ serial_omap_console_write(struct console *co, const char *s, pm_runtime_get_sync(up->dev); - local_irq_save(flags); - if (up->port.sysrq) - locked = 0; - else if (oops_in_progress) - locked = spin_trylock(&up->port.lock); + if (up->port.sysrq || oops_in_progress) + locked = spin_trylock_irqsave(&up->port.lock, flags); else - spin_lock(&up->port.lock); + spin_lock_irqsave(&up->port.lock, flags); /* * First save the IER then disable the interrupts @@ -1267,8 +1264,7 @@ serial_omap_console_write(struct console *co, const char *s, pm_runtime_mark_last_busy(up->dev); pm_runtime_put_autosuspend(up->dev); if (locked) - spin_unlock(&up->port.lock); - local_irq_restore(flags); + spin_unlock_irqrestore(&up->port.lock, flags); } static int __init -- cgit v0.10.2