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MFC r273282: Fail to probe on simplebus nodes that lack a "ranges" property.

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ian 2014-10-26 04:10:17 +00:00
parent 81b5013966
commit d16952c51d
1 changed files with 7 additions and 1 deletions
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8
sys/dev/fdt/simplebus.c
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@ -133,7 +133,13 @@ simplebus_probe(device_t dev)
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (!ofw_bus_is_compatible(dev, "simple-bus") &&
/*
* FDT data puts a "simple-bus" compatible string on many things that
* have children but aren't really busses in our world. Without a
* ranges property we will fail to attach, so just fail to probe too.
*/
if (!(ofw_bus_is_compatible(dev, "simple-bus") &&
ofw_bus_has_prop(dev, "ranges")) &&
(ofw_bus_get_type(dev) == NULL || strcmp(ofw_bus_get_type(dev),
"soc") != 0))
return (ENXIO);