Commit 1d21f2af authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

genirq: Fix misleading synchronize_irq() documentation 



The function might sleep, so it cannot be called from interrupt
context. Not even with care.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/20190628111440.189241552@linutronix.de
parent 4001d8e8

kernel/irq/manage.c

+2 −1
Original line number Diff line number Diff line
@@ -96,7 +96,8 @@ EXPORT_SYMBOL(synchronize_hardirq); 
 *	to complete before returning. If you use this function while

 *	holding a resource the IRQ handler may need you will deadlock.

 *

 *	This function may be called - with care - from IRQ context.

 *	Can only be called from preemptible code as it might sleep when

 *	an interrupt thread is associated to @irq.

 */

void synchronize_irq(unsigned int irq)

{