Patch "genirq: Release resources in __setup_irq() error path" has been added to the 4.4-stable tree

Patch "genirq: Release resources in __setup_irq() error path" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    genirq: Release resources in __setup_irq() error path

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     genirq-release-resources-in-__setup_irq-error-path.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From fa07ab72cbb0d843429e61bf179308aed6cbe0dd Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Sun, 11 Jun 2017 00:38:36 +0200
Subject: genirq: Release resources in __setup_irq() error path

From: Heiner Kallweit <hkallweit1@gmail.com>

commit fa07ab72cbb0d843429e61bf179308aed6cbe0dd upstream.

In case __irq_set_trigger() fails the resources requested via
irq_request_resources() are not released.

Add the missing release call into the error handling path.

Fixes: c1bacbae8192 ("genirq: Provide irq_request/release_resources chip callbacks")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/655538f5-cb20-a892-ff15-fbd2dd1fa4ec@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 kernel/irq/manage.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1287,8 +1287,10 @@ __setup_irq(unsigned int irq, struct irq
 			ret = __irq_set_trigger(desc,
 						new->flags & IRQF_TRIGGER_MASK);
 
-			if (ret)
+			if (ret) {
+				irq_release_resources(desc);
 				goto out_mask;
+			}
 		}
 
 		desc->istate &= ~(IRQS_AUTODETECT | IRQS_SPURIOUS_DISABLED | \


Patches currently in stable-queue which might be from hkallweit1@gmail.com are

queue-4.4/genirq-release-resources-in-__setup_irq-error-path.patch