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Subject[PATCH 3.12 043/212] gpio: msm: make msm_gpio.summary_irq signed for error handling
Date
3.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@oracle.com>

commit bfea603bc54c0a736d45bc60b188a8cdae9aaaa3 upstream.

There is a bug in msm_gpio_probe() where we do:

msm_gpio.summary_irq = platform_get_irq(pdev, 0);
if (msm_gpio.summary_irq < 0) {

The problem is that "msm_gpio.summary_irq" is unsigned so the error
handling doesn't work. I've fixed it by making it signed.

Fixes: 43f68444bce7 ('gpio: msm: Add device tree and irqdomain support for gpio-msm-v2')

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/gpio/gpio-msm-v2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpio/gpio-msm-v2.c
+++ b/drivers/gpio/gpio-msm-v2.c
@@ -102,7 +102,7 @@ struct msm_gpio_dev {
DECLARE_BITMAP(wake_irqs, MAX_NR_GPIO);
DECLARE_BITMAP(dual_edge_irqs, MAX_NR_GPIO);
struct irq_domain *domain;
- unsigned int summary_irq;
+ int summary_irq;
void __iomem *msm_tlmm_base;
};




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