linux-kernel - [PATCH v2] irqchip/gic-v3-its: Free unused vpt

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Message-ID: <1564133577-57866-1-git-send-email-zhangshaokun@hisilicon.com>
Date:   Fri, 26 Jul 2019 17:32:57 +0800
From:   Shaokun Zhang <zhangshaokun@...ilicon.com>
To:     <linux-kernel@...r.kernel.org>
CC:     Nianyao Tang <tangnianyao@...wei.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>,
        Shaokun Zhang <zhangshaokun@...ilicon.com>
Subject: [PATCH v2] irqchip/gic-v3-its: Free unused vpt_page when alloc vpe table fail

From: Nianyao Tang <tangnianyao@...wei.com>

In its_vpe_init, when its_alloc_vpe_table fails, we should free
vpt_page allocated just before, instead of vpe->vpt_page.
Let's fix it.

Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Jason Cooper <jason@...edaemon.net>
Cc: Marc Zyngier <marc.zyngier@....com>
Signed-off-by: Nianyao Tang <tangnianyao@...wei.com>
Signed-off-by: Shaokun Zhang <zhangshaokun@...ilicon.com>
---
 drivers/irqchip/irq-gic-v3-its.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 730fbe0e2a9d..1b5c3672aea2 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -3010,7 +3010,7 @@ static int its_vpe_init(struct its_vpe *vpe)
 
 	if (!its_alloc_vpe_table(vpe_id)) {
 		its_vpe_id_free(vpe_id);
-		its_free_pending_table(vpe->vpt_page);
+		its_free_pending_table(vpt_page);
 		return -ENOMEM;
 	}
 
-- 
2.7.4