[PATCH AUTOSEL 4.14 05/25] irqchip/gic-v3-its: Free unused vpt_page when alloc vpe table fail

From: Sasha Levin
Date: Tue Aug 06 2019 - 17:36:39 EST


From: Nianyao Tang <tangnianyao@xxxxxxxxxx>

[ Upstream commit 34f8eb92ca053cbba2887bb7e4dbf2b2cd6eb733 ]

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@xxxxxxxxxxxxx>
Cc: Jason Cooper <jason@xxxxxxxxxxxxxx>
Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
Signed-off-by: Nianyao Tang <tangnianyao@xxxxxxxxxx>
Signed-off-by: Shaokun Zhang <zhangshaokun@xxxxxxxxxxxxx>
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 121fb552f8734..f80666acb9efd 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -2631,7 +2631,7 @@ 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;
}

--
2.20.1