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Commit d99733ad authored by Miaoqian Lin's avatar Miaoqian Lin Committed by Greg Kroah-Hartman
Browse files

powerpc/xive: Fix refcount leak in xive_get_max_prio 



[ Upstream commit 255b650cbec6849443ce2e0cdd187fd5e61c218c ]

of_find_node_by_path() returns a node pointer with
refcount incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.

Fixes: eac1e731 ("powerpc/xive: guest exploitation of the XIVE interrupt controller")
Signed-off-by: default avatarMiaoqian Lin <linmq006@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220605053225.56125-1-linmq006@gmail.com


Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 14329d29

arch/powerpc/sysdev/xive/spapr.c

+1 −0
Original line number Diff line number Diff line
@@ -683,6 +683,7 @@ static bool xive_get_max_prio(u8 *max_prio) 
	}



	reg = of_get_property(rootdn, "ibm,plat-res-int-priorities", &len);

	of_node_put(rootdn);

	if (!reg) {

		pr_err("Failed to read 'ibm,plat-res-int-priorities' property\n");

		return false;