From: Todd Poynor <toddpoynor@google.com>
Date: Mon, 24 Jan 2011 22:36:39 +0000 (-0800)
Subject: Print pending wakeup IRQ preventing suspend to dmesg
X-Git-Tag: firefly_0821_release~9833^2~5^2~34
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=eac4ccd16357ad77f34c28813d8fcf35ba81fa33;p=firefly-linux-kernel-4.4.55.git

Print pending wakeup IRQ preventing suspend to dmesg

Change-Id: I36f90735c75fb7c7ab1084775ec0d0ab02336e6e
Signed-off-by: Todd Poynor <toddpoynor@google.com>
---

diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c
index 0d4005d85b03..1df62ef4713b 100644
--- a/kernel/irq/pm.c
+++ b/kernel/irq/pm.c
@@ -72,8 +72,12 @@ int check_wakeup_irqs(void)
 	int irq;
 
 	for_each_irq_desc(irq, desc)
-		if ((desc->status & IRQ_WAKEUP) && (desc->status & IRQ_PENDING))
+		if ((desc->status & IRQ_WAKEUP) &&
+		    (desc->status & IRQ_PENDING)) {
+			pr_info("Wakeup IRQ %d %s pending, suspend aborted\n",
+				irq, desc->name ? desc->name : "");
 			return -EBUSY;
+		}
 
 	return 0;
 }