linux-kernel - [PATCH] [media] include/media: fix missing

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Date:   Wed, 18 Apr 2018 16:06:17 +0100
From:   Colin King <colin.king@...onical.com>
To:     Kyungmin Park <kyungmin.park@...sung.com>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] [media] include/media: fix missing | operator when setting cfg

From: Colin Ian King <colin.king@...onical.com>

The value from a readl is being masked with ITE_REG_CIOCAN_MASK however
this is not being used and cfg is being re-assigned.  I believe the
assignment operator should actually be instead the |= operator.

Detected by CoverityScan, CID#1467987 ("Unused value")

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/media/platform/exynos4-is/fimc-lite-reg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/exynos4-is/fimc-lite-reg.c b/drivers/media/platform/exynos4-is/fimc-lite-reg.c
index f0acc550d065..16565a0b4bf1 100644
--- a/drivers/media/platform/exynos4-is/fimc-lite-reg.c
+++ b/drivers/media/platform/exynos4-is/fimc-lite-reg.c
@@ -254,7 +254,7 @@ void flite_hw_set_dma_window(struct fimc_lite *dev, struct flite_frame *f)
 	/* Maximum output pixel size */
 	cfg = readl(dev->regs + FLITE_REG_CIOCAN);
 	cfg &= ~FLITE_REG_CIOCAN_MASK;
-	cfg = (f->f_height << 16) | f->f_width;
+	cfg |= (f->f_height << 16) | f->f_width;
 	writel(cfg, dev->regs + FLITE_REG_CIOCAN);
 
 	/* DMA offsets */
-- 
2.17.0