[GIT PULL] x86 fix

[Ingo Molnar]

Linus,

Please pull the latest x86/urgent git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
x86-urgent-2020-08-02

   # HEAD: bdd65589593edd79b6a12ce86b3b7a7c6dae5208 x86/i8259: Use 
printk_deferred() to prevent deadlock

A single fix for a potential deadlock when printing a message about spurious 
interrupts.

 Thanks,

        Ingo

------------------>
Thomas Gleixner (1):
      x86/i8259: Use printk_deferred() to prevent deadlock


 arch/x86/kernel/i8259.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index f3c76252247d..282b4ee1339f 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -207,7 +207,7 @@ static void mask_and_ack_8259A(struct irq_data *data)
                 * lets ACK and report it. [once per IRQ]
                 */
                if (!(spurious_irq_mask & irqmask)) {
-                       printk(KERN_DEBUG
+                       printk_deferred(KERN_DEBUG
                               "spurious 8259A interrupt: IRQ%d.\n", irq);
                        spurious_irq_mask |= irqmask;
                }