linux-kernel - [PATCH] [media] davinci-vpfe: Fix retcode check

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Date:	Tue,  8 Jul 2014 17:08:08 +0300
From:	Andrey Utkin <andrey.krieger.utkin@...il.com>
To:	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	linux-media@...r.kernel.org
Cc:	gregkh@...uxfoundation.org, m.chehab@...sung.com,
	prabhakar.csengg@...il.com, josh@...htriplett.org, levex@...ux.com,
	archanakumari959@...il.com, lisa@...apiadmin.com,
	Andrey Utkin <andrey.krieger.utkin@...il.com>
Subject: [PATCH] [media] davinci-vpfe: Fix retcode check

Use signed type to check correctly for negative error code. The issue
was reported with static analyser:

[linux-3.13/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c:270]:
(style) A pointer can not be negative so it is either pointless or an
error to check if it is.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=69071
Reported-by: David Binderman <dcb314@...mail.com>
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@...il.com>
---
 drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c b/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c
index b2daf5e..e326032 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c
@@ -254,7 +254,7 @@ int config_ipipe_hw(struct vpfe_ipipe_device *ipipe)
 	void __iomem *ipipe_base = ipipe->base_addr;
 	struct v4l2_mbus_framefmt *outformat;
 	u32 color_pat;
-	u32 ipipe_mode;
+	int ipipe_mode;
 	u32 data_path;
 
 	/* enable clock to IPIPE */
-- 
1.8.3.2

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