From 514580f99af8eae246820fe324a78087972a7d63 Mon Sep 17 00:00:00 2001 From: Andrzej Hajda Date: Thu, 24 Sep 2015 11:00:12 -0300 Subject: [PATCH] [media] v4l: omap3isp: Fix handling platform_get_irq result The function can return negative value. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2046107 Signed-off-by: Andrzej Hajda Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/omap3isp/isp.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index 79a0b953bba3..97f6b1824577 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -2528,12 +2528,13 @@ static int isp_probe(struct platform_device *pdev) } /* Interrupt */ - isp->irq_num = platform_get_irq(pdev, 0); - if (isp->irq_num <= 0) { + ret = platform_get_irq(pdev, 0); + if (ret <= 0) { dev_err(isp->dev, "No IRQ resource\n"); ret = -ENODEV; goto error_iommu; } + isp->irq_num = ret; if (devm_request_irq(isp->dev, isp->irq_num, isp_isr, IRQF_SHARED, "OMAP3 ISP", isp)) { -- 2.39.5