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Subject[PATCH AUTOSEL 4.19 133/219] powerpc/pseries: Fix node leak in update_lmb_associativity_index()
Date
From: Michael Ellerman <mpe@ellerman.id.au>

[ Upstream commit 47918bc68b7427e961035949cc1501a864578a69 ]

In update_lmb_associativity_index() we lookup dr_node using
of_find_node_by_path() which takes a reference for us. In the
non-error case we forget to drop the reference. Note that
find_aa_index() does modify properties of the node, but doesn't need
an extra reference held once it's returned.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/platforms/pseries/hotplug-memory.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index f99cd31b6fd1a..8a1c2c8963214 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -202,6 +202,7 @@ static u32 lookup_lmb_associativity_index(struct drmem_lmb *lmb)

aa_index = find_aa_index(dr_node, ala_prop, lmb_assoc);

+ of_node_put(dr_node);
dlpar_free_cc_nodes(lmb_node);
return aa_index;
}
--
2.20.1
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