linux-kernel - [PATCH][media] DVB, DiB9000: Fix leak in dib9000

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Date:	Thu, 7 Apr 2011 21:34:30 +0200 (CEST)
From:	Jesper Juhl <jj@...osbits.net>
To:	Mauro Carvalho Chehab <mchehab@...radead.org>
cc:	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
	Dan Carpenter <error27@...il.com>,
	Olivier Grenie <olivier.grenie@...com.fr>,
	Patrick Boettcher <patrick.boettcher@...com.fr>
Subject: [PATCH][media] DVB, DiB9000: Fix leak in dib9000_attach()

If the second memory allocation in dib9000_attach() fails, we'll leak the 
memory allocated by the first.

Signed-off-by: Jesper Juhl <jj@...osbits.net>
---
 dib9000.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

   compile tested only...

diff --git a/drivers/media/dvb/frontends/dib9000.c b/drivers/media/dvb/frontends/dib9000.c
index 9151876..b25ef2b 100644
--- a/drivers/media/dvb/frontends/dib9000.c
+++ b/drivers/media/dvb/frontends/dib9000.c
@@ -2255,8 +2255,10 @@ struct dvb_frontend *dib9000_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, c
 	if (st == NULL)
 		return NULL;
 	fe = kzalloc(sizeof(struct dvb_frontend), GFP_KERNEL);
-	if (fe == NULL)
+	if (fe == NULL) {
+		kfree(st);
 		return NULL;
+	}
 
 	memcpy(&st->chip.d9.cfg, cfg, sizeof(struct dib9000_config));
 	st->i2c.i2c_adap = i2c_adap;


-- 
Jesper Juhl <jj@...osbits.net>       http://www.chaosbits.net/
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