From f4f8320b01677b467c768c43c1e1d10383a0e30d Mon Sep 17 00:00:00 2001 From: Liang He Date: Fri, 1 Jul 2022 22:49:49 +0800 Subject: [PATCH] powerpc/cell: Add missing of_node_put() in iommu.c 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 Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220701144949.252364-2-windhl@126.com --- arch/powerpc/platforms/cell/iommu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index 0ca3efeef293b..8c71330395669 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -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 -- 2.30.2