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authorroel kluin <roel.kluin@gmail.com>2009-08-03 06:41:42 +0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-08-20 04:29:26 +0400
commitfb2881a7134576a6e95a63e3d2f34ea5629db4a1 (patch)
tree98ec36788b126a30f56fcac57196d4e29fe7e72f /drivers/macintosh/macio_asic.c
parent14ea58ad797e4e9b7be755aca0fd3925d0713ede (diff)
downloadlinux-fb2881a7134576a6e95a63e3d2f34ea5629db4a1.tar.xz
powerpc/macio: Don't the address of an array element before boundchecking
Check whether index is within bounds before grabbing the element. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/macintosh/macio_asic.c')
-rw-r--r--drivers/macintosh/macio_asic.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index a0f68386c12f..588a5b0bc4b5 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -294,10 +294,11 @@ static void macio_setup_interrupts(struct macio_dev *dev)
int i = 0, j = 0;
for (;;) {
- struct resource *res = &dev->interrupt[j];
+ struct resource *res;
if (j >= MACIO_DEV_COUNT_IRQS)
break;
+ res = &dev->interrupt[j];
irq = irq_of_parse_and_map(np, i++);
if (irq == NO_IRQ)
break;
@@ -321,9 +322,10 @@ static void macio_setup_resources(struct macio_dev *dev,
int index;
for (index = 0; of_address_to_resource(np, index, &r) == 0; index++) {
- struct resource *res = &dev->resource[index];
+ struct resource *res;
if (index >= MACIO_DEV_COUNT_RESOURCES)
break;
+ res = &dev->resource[index];
*res = r;
res->name = dev_name(&dev->ofdev.dev);