ARM: S5P: fix incorrect loop iterator usage on gpio-interrupt

Loop iterator value after terminating list_for_each_entry()
is not NULL. This patch fixes incorrect iterator usage in
GPIO interrupt code for SAMSUNG S5P platforms.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/arch/arm/plat-s5p/irq-gpioint.c b/arch/arm/plat-s5p/irq-gpioint.c
index f71078ef6bb5..f88216d23991 100644
--- a/arch/arm/plat-s5p/irq-gpioint.c
+++ b/arch/arm/plat-s5p/irq-gpioint.c
@@ -114,17 +114,18 @@ static __init int s5p_gpioint_add(struct s3c_gpio_chip *chip)
 {
         static int used_gpioint_groups = 0;
         int group = chip->group;
-        struct s5p_gpioint_bank *bank = NULL;
+        struct s5p_gpioint_bank *b, *bank = NULL;
         struct irq_chip_generic *gc;
         struct irq_chip_type *ct;
 
         if (used_gpioint_groups >= S5P_GPIOINT_GROUP_COUNT)
                 return -ENOMEM;
 
-        list_for_each_entry(bank, &banks, list) {
-                if (group >= bank->start &&
-                    group < bank->start + bank->nr_groups)
+        list_for_each_entry(b, &banks, list) {
+                if (group >= b->start && group < b->start + b->nr_groups) {
+                        bank = b;
                         break;
+                }
         }
         if (!bank)
                 return -EINVAL;