[PATCH 8/8] PCI: rpadlpar: fix a leaked reference by adding missing of_node_put
Wen Yang
wen.yang99 at zte.com.cn
Wed Feb 27 15:40:43 AEDT 2019
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 at zte.com.cn>
Cc: Tyrel Datwyler <tyreld at linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh at kernel.crashing.org>
Cc: Paul Mackerras <paulus at samba.org>
Cc: Michael Ellerman <mpe at ellerman.id.au>
Cc: Bjorn Helgaas <bhelgaas at google.com>
Cc: linux-pci at vger.kernel.org
Cc: linuxppc-dev at lists.ozlabs.org
Cc: linux-kernel at vger.kernel.org
---
drivers/pci/hotplug/rpadlpar_core.c | 1 +
1 file changed, 1 insertion(+)
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;
}
--
2.9.5
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