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authorWen Yang <wen.yang99@zte.com.cn>2019-02-27 12:40:42 +0800
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2019-04-01 10:42:58 +0100
commitff7a5a0a8562434f114035a5a4cbbeec5cb6320c (patch)
tree26eaf5b1ce2d02fb8af5f96b269e10b71cccf975 /tools
parent8956388d3670c5050825a6410761843ffd7e4848 (diff)
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PCI: mediatek: Fix a leaked reference by adding missing of_node_put()
The call to of_get_next_child() returns a node pointer with refcount incremented thus it must be explicitly decremented after the last usage. irq_domain_add_linear() also calls of_node_get() to increase refcount, so irq_domain will not be affected when it is released. Detected by coccinelle with the following warnings: ./drivers/pci/controller/pcie-mediatek.c:577:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 567, but without a corresponding object release within this function. ./drivers/pci/controller/pcie-mediatek.c:583:3-9: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 567, but without a corresponding object release within this function. ./drivers/pci/controller/pcie-mediatek.c:586:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 567, but without a corresponding object release within this function. Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Honghui Zhang <honghui.zhang@mediatek.com> Cc: Ryder Lee <ryder.lee@mediatek.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: linux-pci@vger.kernel.org Cc: linux-mediatek@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org
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