1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index 4d22b21bd3e3..2969ea99f7c7 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -2782,6 +2782,11 @@ static int __devinit hifn_init(void)
         unsigned int freq;
         int err;
 
+        if (sizeof(dma_addr_t) > 4) {
+                printk(KERN_INFO "HIFN supports only 32-bit addresses.\n");
+                return -EINVAL;
+        }
+
         if (strncmp(hifn_pll_ref, "ext", 3) &&
             strncmp(hifn_pll_ref, "pci", 3)) {
                 printk(KERN_ERR "hifn795x: invalid hifn_pll_ref clock, "