linux-kernel - [PATCH] drivers: staging: media: go7007: go7007-usb.c use pr_*() instead of dev_*() before 'go' initialized in go7007_usb

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Message-ID: <52956442.50001@gmail.com>
Date:	Wed, 27 Nov 2013 11:17:22 +0800
From:	Chen Gang <gang.chen.5i5j@...il.com>
To:	hans.verkuil@...co.com, m.chehab@...sung.com
CC:	rkuo <rkuo@...eaurora.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...uxfoundation.org>,
	linux-media@...r.kernel.org,
	"devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>
Subject: [PATCH] drivers: staging: media: go7007: go7007-usb.c use pr_*()
 instead of dev_*() before 'go' initialized in go7007_usb_probe()

dev_*() assumes 'go' is already initialized, so need use pr_*() instead
of before 'go' initialized. Related warning (with allmodconfig under
hexagon):

    CC [M]  drivers/staging/media/go7007/go7007-usb.o
  drivers/staging/media/go7007/go7007-usb.c: In function 'go7007_usb_probe':
  drivers/staging/media/go7007/go7007-usb.c:1060:2: warning: 'go' may be used uninitialized in this function [-Wuninitialized]

Also remove useless code after 'return' statement.


Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
---
 drivers/staging/media/go7007/go7007-usb.c |   11 ++++-------
 1 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index 58684da..30310e9 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -1057,7 +1057,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 	char *name;
 	int video_pipe, i, v_urb_len;
 
-	dev_dbg(go->dev, "probing new GO7007 USB board\n");
+	pr_devel("probing new GO7007 USB board\n");
 
 	switch (id->driver_info) {
 	case GO7007_BOARDID_MATRIX_II:
@@ -1097,13 +1097,10 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		board = &board_px_tv402u;
 		break;
 	case GO7007_BOARDID_LIFEVIEW_LR192:
-		dev_err(go->dev, "The Lifeview TV Walker Ultra is not supported. Sorry!\n");
+		pr_err("The Lifeview TV Walker Ultra is not supported. Sorry!\n");
 		return -ENODEV;
-		name = "Lifeview TV Walker Ultra";
-		board = &board_lifeview_lr192;
-		break;
 	case GO7007_BOARDID_SENSORAY_2250:
-		dev_info(go->dev, "Sensoray 2250 found\n");
+		pr_info("Sensoray 2250 found\n");
 		name = "Sensoray 2250/2251";
 		board = &board_sensoray_2250;
 		break;
@@ -1112,7 +1109,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		board = &board_ads_usbav_709;
 		break;
 	default:
-		dev_err(go->dev, "unknown board ID %d!\n",
+		pr_err("unknown board ID %d!\n",
 				(unsigned int)id->driver_info);
 		return -ENODEV;
 	}
-- 
1.7.7.6
--
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