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powerpc/cell: Add missing of_node_put() in iommu.c

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In cell_iommu_init_disabled(), hold the reference returned by
of_find_node_by_name() and use it to call of_node_put() for reference
balance.

Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220701144949.252364-2-windhl@126.com
This commit is contained in:
Liang He 2022-07-01 22:49:49 +08:00 committed by Michael Ellerman
parent ad4b323693
commit f4f8320b01
1 changed files with 3 additions and 1 deletions
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4
arch/powerpc/platforms/cell/iommu.c
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@ -720,8 +720,10 @@ static int __init cell_iommu_init_disabled(void)
cell_disable_iommus();
/* If we have no Axon, we set up the spider DMA magic offset */
if (of_find_node_by_name(NULL, "axon") == NULL)
np = of_find_node_by_name(NULL, "axon");
if (!np)
cell_dma_nommu_offset = SPIDER_DMA_OFFSET;
of_node_put(np);
/* Now we need to check to see where the memory is mapped
* in PCI space. We assume that all busses use the same dma