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Diffstat (limited to 'arch/arm/plat-orion/mpp.c')
-rw-r--r--arch/arm/plat-orion/mpp.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/plat-orion/mpp.c b/arch/arm/plat-orion/mpp.c
index 5b4ff9373c89..8a6880d528b6 100644
--- a/arch/arm/plat-orion/mpp.c
+++ b/arch/arm/plat-orion/mpp.c
@@ -28,10 +28,15 @@ void __init orion_mpp_conf(unsigned int *mpp_list, unsigned int variant_mask,
unsigned int mpp_max, void __iomem *dev_bus)
{
unsigned int mpp_nr_regs = (1 + mpp_max/8);
- u32 mpp_ctrl[mpp_nr_regs];
+ u32 mpp_ctrl[8];
int i;
printk(KERN_DEBUG "initial MPP regs:");
+ if (mpp_nr_regs > ARRAY_SIZE(mpp_ctrl)) {
+ printk(KERN_ERR "orion_mpp_conf: invalid mpp_max\n");
+ return;
+ }
+
for (i = 0; i < mpp_nr_regs; i++) {
mpp_ctrl[i] = readl(mpp_ctrl_addr(i, dev_bus));
printk(" %08x", mpp_ctrl[i]);