linux-kernel - [PATCH] V4L/DVB (7725): cx23885: unsigned cx23417

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Message-ID: <492DC7A6.5090806@gmail.com>
Date:	Wed, 26 Nov 2008 17:03:18 -0500
From:	roel kluin <roel.kluin@...il.com>
To:	hverkuil@...all.nl, mchehab@...radead.org
CC:	linux-kernel@...r.kernel.org, video4linux-list@...hat.com
Subject: [PATCH] V4L/DVB (7725): cx23885: unsigned cx23417_mailbox cannot
 be negative

Unsigned cx23417_mailbox cannot be negative

Signed-off-by: Roel Kluin <roel.kluin@...il.com>
---
dev->cx23417_mailbox has type u32, see
vi drivers/media/video/cx23885/cx23885.h +330

cx23885_find_mailbox() returns int, see
vi drivers/media/video/cx23885/cx23885-417.c +832

diff --git a/drivers/media/video/cx23885/cx23885-417.c b/drivers/media/video/cx23885/cx23885-417.c
index 8118091..f0f09aa 100644
--- a/drivers/media/video/cx23885/cx23885-417.c
+++ b/drivers/media/video/cx23885/cx23885-417.c
@@ -1028,12 +1028,13 @@ static int cx23885_initialize_codec(struct cx23885_dev *dev)
 			printk(KERN_ERR "%s() f/w load failed\n", __func__);
 			return retval;
 		}
-		dev->cx23417_mailbox = cx23885_find_mailbox(dev);
-		if (dev->cx23417_mailbox < 0) {
+		retval = cx23885_find_mailbox(dev);
+		if (retval < 0) {
 			printk(KERN_ERR "%s() mailbox < 0, error\n",
 				__func__);
 			return -1;
 		}
+		dev->cx23417_mailbox = retval;
 		retval = cx23885_api_cmd(dev, CX2341X_ENC_PING_FW, 0, 0);
 		if (retval < 0) {
 			printk(KERN_ERR

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