40 lines
1.1 KiB
Diff
40 lines
1.1 KiB
Diff
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Subject: drivers-tty-fix-omap-lock-crap.patch
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Thu, 28 Jul 2011 13:32:57 +0200
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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drivers/tty/serial/omap-serial.c | 8 +++-----
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1 file changed, 3 insertions(+), 5 deletions(-)
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Index: linux-3.2/drivers/tty/serial/omap-serial.c
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===================================================================
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--- linux-3.2.orig/drivers/tty/serial/omap-serial.c
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+++ linux-3.2/drivers/tty/serial/omap-serial.c
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@@ -946,13 +946,12 @@ serial_omap_console_write(struct console
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unsigned int ier;
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int locked = 1;
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- local_irq_save(flags);
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if (up->port.sysrq)
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locked = 0;
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else if (oops_in_progress)
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- locked = spin_trylock(&up->port.lock);
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+ locked = spin_trylock_irqsave(&up->port.lock, flags);
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else
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- spin_lock(&up->port.lock);
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+ spin_lock_irqsave(&up->port.lock, flags);
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/*
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* First save the IER then disable the interrupts
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@@ -979,8 +978,7 @@ serial_omap_console_write(struct console
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check_modem_status(up);
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if (locked)
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- spin_unlock(&up->port.lock);
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- local_irq_restore(flags);
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+ spin_unlock_irqrestore(&up->port.lock, flags);
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}
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static int __init
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