asic3: platform_get_irq() may return signed unnoticed

asic->irq_nr is unsigned. platform_get_irq() may return signed unnoticed

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Cc: Joe Perches <joe@perches.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 3b870e7..eabf0bf 100644 (file)
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -314,10 +314,12 @@ static int __init asic3_irq_probe(struct platform_device *pdev)
        unsigned long clksel = 0;
        unsigned int irq, irq_base;
        int map_size;
+       int ret;
 
-       asic->irq_nr = platform_get_irq(pdev, 0);
-       if (asic->irq_nr < 0)
-               return asic->irq_nr;
+       ret = platform_get_irq(pdev, 0);
+       if (ret < 0)
+               return ret;
+       asic->irq_nr = ret;
 
        /* turn on clock to IRQ controller */
        clksel |= CLOCK_SEL_CX;