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[POWERPC] Make sure device node type/name is not NULL on hot-added nodes

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Our device-tree unflattening code makes sure the name and type fields
of a device-node are not NULL. However, the code for dynamically
adding devices nodes which is used for pSeries hotplug for example
didn't do it, potentially causing crashes in some code that assume it
can always do things like strcmp on those.

Signed-off-by: Benjamin Herrenschmidt <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
This commit is contained in:
Benjamin Herrenschmidt 2007-05-16 16:57:24 +10:00 • committed by Paul Mackerras
commit 847f5976f9
1 changed files with 5 additions and 0 deletions
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5
arch/powerpc/kernel/prom.c
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@ -1472,6 +1472,11 @@ static int of_finish_dynamic_node(struct device_node *node)
node->name = of_get_property(node, "name", NULL);
node->type = of_get_property(node, "device_type", NULL);
if (!node->name)
node->name = "<NULL>";
if (!node->type)
node->type = "<NULL>";
if (!parent) {
err = -ENODEV;
goto out;