1 files changed, 2 insertions, 0 deletions

diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 22705eeff34f..c4161e03df78 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -762,6 +762,8 @@ int peripheral_request(unsigned short per, const char *label)
         if (!(per & P_DEFINED))
                 return -ENODEV;
 
+        BUG_ON(ident >= MAX_RESOURCES);
+
         local_irq_save_hw(flags);
 
         /* If a pin can be muxed as either GPIO or peripheral, make