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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2007-05-16 16:57:24 +1000
committerPaul Mackerras <paulus@samba.org>2007-05-17 21:11:15 +1000
commit847f5976f90d5637a86a826c1c594091d08f3156 (patch)
tree5226c33114ee798626a870e4de14c4c10bd31fba /arch/powerpc
parentc72ea777d4e51435388fbd863c813a19635fa8ef (diff)
[POWERPC] Make sure device node type/name is not NULL on hot-added nodes
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 <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/prom.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index c065b555036..066a6a7a25b 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -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;