[tip: irq/urgent] irqchip/gic-v5: Check for NULL LPI domain on domain teardown

[tip-bot2 for Lorenzo Pieralisi]

The following commit has been merged into the irq/urgent branch of tip:

Commit-ID:     aa079dbf4c2598c2613a0e464efcb2c232753c51
Gitweb:        https://git.kernel.org/tip/aa079dbf4c2598c2613a0e464efcb2c232753c51
Author:        Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx>
AuthorDate:    Wed, 12 Aug 2026 11:10:30 +02:00
Committer:     Thomas Gleixner <tglx@xxxxxxxxxx>
CommitterDate: Thu, 20 Aug 2026 10:23:53 +02:00

irqchip/gic-v5: Check for NULL LPI domain on domain teardown

In gicv5_free_lpi_domain() the LPI domain being freed can be NULL.

Check it and return before trying to free it if it is.

Fixes: 0f0101325876 ("irqchip/gic-v5: Add GICv5 LPI/IPI support")
Signed-off-by: Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxx>
Link: https://sashiko.dev/#/message/20260810104747.E5CE71F000E9%40smtp.kernel.org
Link: https://patch.msgid.link/20260812-gicv5-7-2-fixes-v1-2-3743e82c69a4@xxxxxxxxxx
---
 drivers/irqchip/irq-gic-v5.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/irqchip/irq-gic-v5.c b/drivers/irqchip/irq-gic-v5.c
index ca48c8b..2151464 100644
--- a/drivers/irqchip/irq-gic-v5.c
+++ b/drivers/irqchip/irq-gic-v5.c
@@ -862,6 +862,9 @@ void __init gicv5_init_lpi_domain(void)
 
 void __init gicv5_free_lpi_domain(void)
 {
+	if (!gicv5_global_data.lpi_domain)
+		return;
+
 	irq_domain_remove(gicv5_global_data.lpi_domain);
 	gicv5_global_data.lpi_domain = NULL;
 }