1 files changed, 6 insertions, 2 deletions

diff --git a/arch/arm/plat-omap/mux.c b/arch/arm/plat-omap/mux.c
index 05aebcad215b..06703635ace1 100644
--- a/arch/arm/plat-omap/mux.c
+++ b/arch/arm/plat-omap/mux.c
@@ -54,8 +54,12 @@ int __init_or_module omap_cfg_reg(const unsigned long index)
 {
         struct pin_config *reg;
 
-        if (cpu_is_omap44xx())
-                return 0;
+        if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
+                printk(KERN_ERR "mux: Broken omap_cfg_reg(%lu) entry\n",
+                                index);
+                WARN_ON(1);
+                return -EINVAL;
+        }
 
         if (mux_cfg == NULL) {
                 printk(KERN_ERR "Pin mux table not initialized\n");