From: Miaoqian Lin <linmq006@xxxxxxxxx>
[ Upstream commit 533bec143a4c32f7b2014a159d0f5376226e5b4d ]
The of_find_compatible_node() function returns a node pointer with
refcount incremented, We should use of_node_put() on it when done
Add the missing of_node_put() to release the refcount.
Fixes: 9b08aaa3199a ("ARM: XEN: Move xen_early_init() before efi_init()")
Fixes: b2371587fe0c ("arm/xen: Read extended regions from DT and init Xen resource")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/arm/xen/enlighten.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index ec5b082f3de6..07eb69f9e7df 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -337,12 +337,15 @@ int __init arch_xen_unpopulated_init(struct resource **res)
if (!nr_reg) {
pr_err("No extended regions are found\n");
+ of_node_put(np);
return -EINVAL;
}
regs = kcalloc(nr_reg, sizeof(*regs), GFP_KERNEL);
- if (!regs)
+ if (!regs) {
+ of_node_put(np);
return -ENOMEM;
+ }
/*
* Create resource from extended regions provided by the hypervisor to be
@@ -403,8 +406,8 @@ int __init arch_xen_unpopulated_init(struct resource **res)
*res = &xen_resource;
err:
+ of_node_put(np);
kfree(regs);
-
return rc;
}
#endif
@@ -424,8 +427,10 @@ static void __init xen_dt_guest_init(void)
if (of_address_to_resource(xen_node, GRANT_TABLE_INDEX, &res)) {
pr_err("Xen grant table region is not found\n");
+ of_node_put(xen_node);
return;
}
+ of_node_put(xen_node);
xen_grant_frames = res.start;
}
--
2.35.1
