linux-kernel - [PATCH 3/4] [media] sp2: Adjust a jump target in sp2

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Date:   Fri, 1 Sep 2017 21:44:45 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-media@...r.kernel.org,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Olli Salonen <olli.salonen@....fi>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 3/4] [media] sp2: Adjust a jump target in sp2_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Fri, 1 Sep 2017 21:08:38 +0200

* Adjust a jump target so that a null pointer will not be passed to a call
  of the function "kfree".

* Move this function call into an if branch.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/media/dvb-frontends/sp2.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/media/dvb-frontends/sp2.c b/drivers/media/dvb-frontends/sp2.c
index dd556012ceb6..b2a7a54174ae 100644
--- a/drivers/media/dvb-frontends/sp2.c
+++ b/drivers/media/dvb-frontends/sp2.c
@@ -384,7 +384,7 @@ static int sp2_probe(struct i2c_client *client,
 	s = kzalloc(sizeof(*s), GFP_KERNEL);
 	if (!s) {
 		ret = -ENOMEM;
-		goto err;
+		goto report_failure;
 	}
 
 	s->client = client;
@@ -395,15 +395,16 @@ static int sp2_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, s);
 
 	ret = sp2_init(s);
-	if (ret)
-		goto err;
+	if (ret) {
+		kfree(s);
+		goto report_failure;
+	}
 
 	dev_info(&s->client->dev, "CIMaX SP2 successfully attached\n");
 	return 0;
-err:
-	dev_dbg(&client->dev, "init failed=%d\n", ret);
-	kfree(s);
 
+report_failure:
+	dev_dbg(&client->dev, "init failed=%d\n", ret);
 	return ret;
 }
 
-- 
2.14.1