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-rw-r--r--arch/blackfin/kernel/bfin_gpio.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 22705ee..c4161e0 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