From 425f1cc2218af96d81dbec092155d436d6037d2c Mon Sep 17 00:00:00 2001
From: Hillf Danton <hdanton@sina.com>
Date: Tue, 30 Apr 2019 11:25:00 -0700
Subject: [PATCH] xen/arm: Free p2m entry if fail to add it to RB tree
Release the newly allocated p2m entry if we detect a duplicate in the RB
tree.
Signed-off-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
---
arch/arm/xen/p2m.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/xen/p2m.c b/arch/arm/xen/p2m.c
index e70a49fc8dcd1..d3f632c888909 100644
--- a/arch/arm/xen/p2m.c
+++ b/arch/arm/xen/p2m.c
@@ -156,6 +156,7 @@ bool __set_phys_to_machine_multi(unsigned long pfn,
rc = xen_add_phys_to_mach_entry(p2m_entry);
if (rc < 0) {
write_unlock_irqrestore(&p2m_lock, irqflags);
+ kfree(p2m_entry);
return false;
}
write_unlock_irqrestore(&p2m_lock, irqflags);
--
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