Adding debian version 4.19.249-2.debian/4.19.249-2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 49 insertions, 0 deletions

diff --git a/debian/patches-rt/0164-tty-serial-omap-Make-the-locking-RT-aware.patch b/debian/patches-rt/0164-tty-serial-omap-Make-the-locking-RT-aware.patch
new file mode 100644
index 000000000..842a20687
--- /dev/null
+++ b/debian/patches-rt/0164-tty-serial-omap-Make-the-locking-RT-aware.patch
@@ -0,0 +1,49 @@
+From ebe8e211893ebd446569ab83eeb7277a77db835f Mon Sep 17 00:00:00 2001
+From: Thomas Gleixner <tglx@linutronix.de>
+Date: Thu, 28 Jul 2011 13:32:57 +0200
+Subject: [PATCH 164/347] tty/serial/omap: Make the locking RT aware
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz
+
+The lock is a sleeping lock and local_irq_save() is not the
+optimsation we are looking for. Redo it to make it work on -RT and
+non-RT.
+
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+---
+ drivers/tty/serial/omap-serial.c | 12 ++++--------
+ 1 file changed, 4 insertions(+), 8 deletions(-)
+
+diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
+index 6420ae581a80..0f4f41ed9ffa 100644
+--- a/drivers/tty/serial/omap-serial.c
++++ b/drivers/tty/serial/omap-serial.c
+@@ -1307,13 +1307,10 @@ 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
+@@ -1342,8 +1339,7 @@ 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
+-- 
+2.36.1
+