[8/8] PCI: rpadlpar: fix a leaked reference by adding missing of_node_put
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Message ID 1551242443-27300-8-git-send-email-wen.yang99@zte.com.cn
State New
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Series
  • [1/8] PCI: dwc: pci-dra7xx: fix a leaked reference by adding missing of_node_put
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Commit Message

Wen Yang Feb. 27, 2019, 4:40 a.m. UTC
The call to of_find_node_by_name returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.

Detected by coccinelle with the following warnings:
./drivers/pci/hotplug/rpadlpar_core.c:55:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 42, but without a corresponding object release within this function

Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org
---
 drivers/pci/hotplug/rpadlpar_core.c | 1 +
 1 file changed, 1 insertion(+)

Patch
diff mbox series

diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c
index e2356a9..f3f42ff 100644
--- a/drivers/pci/hotplug/rpadlpar_core.c
+++ b/drivers/pci/hotplug/rpadlpar_core.c
@@ -52,6 +52,7 @@  static struct device_node *find_vio_slot_node(char *drc_name)
 			break;
 	}
 
+	of_node_put(parent);
 	return dn;
 }