linux-kernel - [GIT PULL] IRQ fixes

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Message-ID: <aBcSbcZPNZjW89mn@gmail.com>
Date: Sun, 4 May 2025 09:08:29 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>
Subject: [GIT PULL] IRQ fixes

Linus,

Please pull the latest irq/urgent Git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq-urgent-2025-05-04

   # HEAD: 38a05c0b87833f5b188ae43b428b1f792df2b384 irqchip/qcom-mpm: Prevent crash when trying to handle non-wake GPIOs

Two fixes:

 - Prevent NULL pointer dereference in msi_domain_debug_show()

 - Fix crash in the qcom-mpm irqchip driver when configuring
   interrupts for non-wake GPIOs

 Thanks,

	Ingo

------------------>
Andrew Jones (1):
      genirq/msi: Prevent NULL pointer dereference in msi_domain_debug_show()

Stephan Gerhold (1):
      irqchip/qcom-mpm: Prevent crash when trying to handle non-wake GPIOs


 drivers/irqchip/irq-qcom-mpm.c | 3 +++
 kernel/irq/msi.c               | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-qcom-mpm.c b/drivers/irqchip/irq-qcom-mpm.c
index 7942d8eb3d00..f772deb9cba5 100644
--- a/drivers/irqchip/irq-qcom-mpm.c
+++ b/drivers/irqchip/irq-qcom-mpm.c
@@ -227,6 +227,9 @@ static int qcom_mpm_alloc(struct irq_domain *domain, unsigned int virq,
 	if (ret)
 		return ret;
 
+	if (pin == GPIO_NO_WAKE_IRQ)
+		return irq_domain_disconnect_hierarchy(domain, virq);
+
 	ret = irq_domain_set_hwirq_and_chip(domain, virq, pin,
 					    &qcom_mpm_chip, priv);
 	if (ret)
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 5c8d43cdb0a3..c05ba7ca00fa 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -761,7 +761,7 @@ static int msi_domain_translate(struct irq_domain *domain, struct irq_fwspec *fw
 static void msi_domain_debug_show(struct seq_file *m, struct irq_domain *d,
 				  struct irq_data *irqd, int ind)
 {
-	struct msi_desc *desc = irq_data_get_msi_desc(irqd);
+	struct msi_desc *desc = irqd ? irq_data_get_msi_desc(irqd) : NULL;
 
 	if (!desc)
 		return;