linux-kernel - [PATCH 2/2] [media] mn88472: One function call less in mn88472

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Date:	Sun, 01 Feb 2015 20:18:15 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Antti Palosaari <crope@....fi>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	devel@...verdev.osuosl.org, linux-media@...r.kernel.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 2/2] [media] mn88472: One function call less in mn88472_init()
 after error detection

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 1 Feb 2015 19:34:37 +0100

The release_firmware() function was called in three cases by the mn88472_init()
function during error handling even if the passed variable "fw" contained still
a null pointer.

This implementation detail could be improved by the introduction of another
jump label.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/staging/media/mn88472/mn88472.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/media/mn88472/mn88472.c b/drivers/staging/media/mn88472/mn88472.c
index e7874ae..3975a57 100644
--- a/drivers/staging/media/mn88472/mn88472.c
+++ b/drivers/staging/media/mn88472/mn88472.c
@@ -286,7 +286,7 @@ static int mn88472_init(struct dvb_frontend *fe)
 
 	ret = regmap_write(dev->regmap[0], 0xf5, 0x03);
 	if (ret)
-		goto err;
+		goto firmware_release;
 
 	for (remaining = fw->size; remaining > 0;
 			remaining -= (dev->i2c_wr_max - 1)) {
@@ -299,13 +299,13 @@ static int mn88472_init(struct dvb_frontend *fe)
 		if (ret) {
 			dev_err(&client->dev,
 					"firmware download failed=%d\n", ret);
-			goto err;
+			goto firmware_release;
 		}
 	}
 
 	ret = regmap_write(dev->regmap[0], 0xf5, 0x00);
 	if (ret)
-		goto err;
+		goto firmware_release;
 
 	release_firmware(fw);
 	fw = NULL;
@@ -314,9 +314,9 @@ static int mn88472_init(struct dvb_frontend *fe)
 	dev->warm = true;
 
 	return 0;
-err:
+firmware_release:
 	release_firmware(fw);
-
+err:
 	dev_dbg(&client->dev, "failed=%d\n", ret);
 	return ret;
 }
-- 
2.2.2

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