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Subject[PATCH v2 2/2] of/irq: Fix endian issues in parsing interrupt specifiers
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This patch fixes some instances where interrupt specifiers are
dereferenced directly instead of doing a be32_to_cpu() conversion first.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---
drivers/of/irq.c | 13 +++++++------
1 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 65cfae1..2d14eac 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -91,8 +91,8 @@ static struct device_node *of_irq_find_parent(struct device_node *child)
* properties, for example when resolving PCI interrupts when no device
* node exist for the parent.
*/
-int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize,
- const u32 *addr, struct of_irq *out_irq)
+int of_irq_map_raw(struct device_node *parent, const __be32 *intspec,
+ u32 ointsize, const __be32 *addr, struct of_irq *out_irq)
{
struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL;
const __be32 *tmp, *imap, *imask;
@@ -100,7 +100,8 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize,
int imaplen, match, i;

pr_debug("of_irq_map_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n",
- parent->full_name, intspec[0], intspec[1], ointsize);
+ parent->full_name, be32_to_cpup(intspec),
+ be32_to_cpu(intspec + 1), ointsize);

ipar = of_node_get(parent);

@@ -278,7 +279,7 @@ EXPORT_SYMBOL_GPL(of_irq_map_raw);
int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq)
{
struct device_node *p;
- const u32 *intspec, *tmp, *addr;
+ const __be32 *intspec, *tmp, *addr;
u32 intsize, intlen;
int res = -EINVAL;

@@ -292,9 +293,9 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq
intspec = of_get_property(device, "interrupts", &intlen);
if (intspec == NULL)
return -EINVAL;
- intlen /= sizeof(u32);
+ intlen /= sizeof(*intspec);

- pr_debug(" intspec=%d intlen=%d\n", *intspec, intlen);
+ pr_debug(" intspec=%d intlen=%d\n", be32_to_cpup(intspec), intlen);

/* Get the reg property (if any) */
addr = of_get_property(device, "reg", NULL);


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