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cxl: Fix refcount leak in cxl_calc_capp_routing
[ Upstream commit1d09697ff2
] of_get_next_parent() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. This function only calls of_node_put() in normal path, missing it in the error path. Add missing of_node_put() to avoid refcount leak. Fixes:f24be42aab
("cxl: Add psl9 specific code") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Acked-by: Andrew Donnellan <ajd@linux.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220605060038.62217-1-linmq006@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -387,6 +387,7 @@ int cxl_calc_capp_routing(struct pci_dev *dev, u64 *chipid,
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rc = get_phb_index(np, phb_index);
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if (rc) {
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pr_err("cxl: invalid phb index\n");
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of_node_put(np);
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return rc;
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}
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