linux-kernel - [PATCH v2 2/3] irqchip/gic-v5: Fix forever loop in gicv5_its_create_itt_two

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Message-ID: <a6dd885a-5a1b-41b5-9673-0d42f7fa929d@sabinyo.mountain>
Date: Thu, 17 Jul 2025 13:45:34 -0500
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Lorenzo Pieralisi <lpieralisi@...nel.org>
Cc: Marc Zyngier <maz@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
	Timothy Hayes <timothy.hayes@....com>,
	Sascha Bischoff <sascha.bischoff@....com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/3] irqchip/gic-v5: Fix forever loop in
 gicv5_its_create_itt_two_level() error handling

The "i" variable needs to be signed otherwise there is a forever loop
in the cleanup code.

Fixes: 57d72196dfc8 ("irqchip/gic-v5: Add GICv5 ITS support")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
v2: no change

 drivers/irqchip/irq-gic-v5-its.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v5-its.c b/drivers/irqchip/irq-gic-v5-its.c
index 340640fdbdf6..55360ae9f1f6 100644
--- a/drivers/irqchip/irq-gic-v5-its.c
+++ b/drivers/irqchip/irq-gic-v5-its.c
@@ -191,9 +191,9 @@ static int gicv5_its_create_itt_two_level(struct gicv5_its_chip_data *its,
 					  unsigned int num_events)
 {
 	unsigned int l1_bits, l2_bits, span, events_per_l2_table;
-	unsigned int i, complete_tables, final_span, num_ents;
+	unsigned int complete_tables, final_span, num_ents;
 	__le64 *itt_l1, *itt_l2, **l2ptrs;
-	int ret;
+	int i, ret;
 	u64 val;
 
 	ret = gicv5_its_l2sz_to_l2_bits(itt_l2sz);
-- 
2.47.2