3.2-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpen...@oracle.com>
commit d79550a7bc35c16476ebdc27c78378d8093390ec upstream.
->last_ier is an unsigned long but the high bits can't be used int the
original code because the shift wraps.
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Signed-off-by: Linus Walleij <linus.wall...@linaro.org>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
drivers/gpio/gpio-timberdale.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpio/gpio-timberdale.c b/drivers/gpio/gpio-timberdale.c
index 031c6ad..1a3e2b9 100644
--- a/drivers/gpio/gpio-timberdale.c
+++ b/drivers/gpio/gpio-timberdale.c
@@ -116,7 +116,7 @@ static void timbgpio_irq_disable(struct irq_data *d)
unsigned long flags;
spin_lock_irqsave(&tgpio->lock, flags);
- tgpio->last_ier &= ~(1 << offset);
+ tgpio->last_ier &= ~(1UL << offset);
iowrite32(tgpio->last_ier, tgpio->membase + TGPIO_IER);
spin_unlock_irqrestore(&tgpio->lock, flags);
}
@@ -128,7 +128,7 @@ static void timbgpio_irq_enable(struct irq_data *d)
unsigned long flags;
spin_lock_irqsave(&tgpio->lock, flags);
- tgpio->last_ier |= 1 << offset;
+ tgpio->last_ier |= 1UL << offset;
iowrite32(tgpio->last_ier, tgpio->membase + TGPIO_IER);
spin_unlock_irqrestore(&tgpio->lock, flags);
}
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