of: Fix dereferencing node name in debug output to be safe
Several locations in the of_address and of_irq code dereference the
full_name parameter from a device_node pointer without checking if the
pointer is valid. This patch switches to use of_node_full_name() which
always checks the pointer.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
diff --git a/drivers/of/address.c b/drivers/of/address.c
index b55c218..71180b9 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -489,7 +489,7 @@
int na, ns, pna, pns;
u64 result = OF_BAD_ADDR;
- pr_debug("OF: ** translation for device %s **\n", dev->full_name);
+ pr_debug("OF: ** translation for device %s **\n", of_node_full_name(dev));
/* Increase refcount at current level */
of_node_get(dev);
@@ -504,13 +504,13 @@
bus->count_cells(dev, &na, &ns);
if (!OF_CHECK_COUNTS(na, ns)) {
printk(KERN_ERR "prom_parse: Bad cell count for %s\n",
- dev->full_name);
+ of_node_full_name(dev));
goto bail;
}
memcpy(addr, in_addr, na * 4);
pr_debug("OF: bus is %s (na=%d, ns=%d) on %s\n",
- bus->name, na, ns, parent->full_name);
+ bus->name, na, ns, of_node_full_name(parent));
of_dump_addr("OF: translating address:", addr, na);
/* Translate */