linux-kernel - [PATCH] [media] gsc-m2m: Use an unsigned data type for a variable

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Date:	Sat, 19 Dec 2015 16:23:11 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Kukjin Kim <kgene@...nel.org>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org
Cc:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] [media] gsc-m2m: Use an unsigned data type for a variable

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 19 Dec 2015 15:28:37 +0100

The data type "int" was used by the variable "ret" in the
gsc_m2m_poll() function despite of the aspect that the type "unsigned int"
will usually be needed for the return value from a call of the
v4l2_m2m_poll() function.
Improve this implementation detail by addition of the type modifier then.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/media/platform/exynos-gsc/gsc-m2m.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/exynos-gsc/gsc-m2m.c b/drivers/media/platform/exynos-gsc/gsc-m2m.c
index d82e717..f2c091c 100644
--- a/drivers/media/platform/exynos-gsc/gsc-m2m.c
+++ b/drivers/media/platform/exynos-gsc/gsc-m2m.c
@@ -701,7 +701,7 @@ static unsigned int gsc_m2m_poll(struct file *file,
 {
 	struct gsc_ctx *ctx = fh_to_ctx(file->private_data);
 	struct gsc_dev *gsc = ctx->gsc_dev;
-	int ret;
+	unsigned int ret;
 
 	if (mutex_lock_interruptible(&gsc->lock))
 		return -ERESTARTSYS;
-- 
2.6.3

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