diff options
| author | Grant Likely <grant.likely@linaro.org> | 2013-09-19 11:01:52 -0500 |
|---|---|---|
| committer | Grant Likely <grant.likely@linaro.org> | 2013-10-15 20:09:19 +0100 |
| commit | 8804827b305dbc1c6e24f2b36f1df4a9856b80e8 (patch) | |
| tree | 9410216049081192e8b903e75454ffaf892639d3 | |
| parent | f3cea45a77c8ebdb7efad100e576eb6cb401bf25 (diff) | |
| download | blackbird-op-linux-8804827b305dbc1c6e24f2b36f1df4a9856b80e8.tar.gz blackbird-op-linux-8804827b305dbc1c6e24f2b36f1df4a9856b80e8.zip | |
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>
| -rw-r--r-- | drivers/of/address.c | 6 | ||||
| -rw-r--r-- | drivers/of/irq.c | 8 |
2 files changed, 7 insertions, 7 deletions
diff --git a/drivers/of/address.c b/drivers/of/address.c index b55c21890760..71180b91bfbe 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -489,7 +489,7 @@ static u64 __of_translate_address(struct device_node *dev, 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 @@ static u64 __of_translate_address(struct device_node *dev, 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 */ diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 1752988d6aa8..f5fa5d84aa06 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -102,7 +102,7 @@ int of_irq_map_raw(struct device_node *parent, const __be32 *intspec, int imaplen, match, i; pr_debug("of_irq_map_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n", - parent->full_name, be32_to_cpup(intspec), + of_node_full_name(parent), be32_to_cpup(intspec), be32_to_cpup(intspec + 1), ointsize); ipar = of_node_get(parent); @@ -126,7 +126,7 @@ int of_irq_map_raw(struct device_node *parent, const __be32 *intspec, goto fail; } - pr_debug("of_irq_map_raw: ipar=%s, size=%d\n", ipar->full_name, intsize); + pr_debug("of_irq_map_raw: ipar=%s, size=%d\n", of_node_full_name(ipar), intsize); if (ointsize != intsize) return -EINVAL; @@ -287,7 +287,7 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq u32 intsize, intlen; int res = -EINVAL; - pr_debug("of_irq_map_one: dev=%s, index=%d\n", device->full_name, index); + pr_debug("of_irq_map_one: dev=%s, index=%d\n", of_node_full_name(device), index); /* OldWorld mac stuff is "special", handle out of line */ if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC) @@ -355,7 +355,7 @@ int of_irq_to_resource(struct device_node *dev, int index, struct resource *r) r->start = r->end = irq; r->flags = IORESOURCE_IRQ; - r->name = name ? name : dev->full_name; + r->name = name ? name : of_node_full_name(dev); } return irq; |
