lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <1357219362-9080-1-git-send-email-prabhakar.lad@ti.com>
Date:	Thu,  3 Jan 2013 18:52:39 +0530
From:	"Lad, Prabhakar" <prabhakar.csengg@...il.com>
To:	LMML <linux-media@...r.kernel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Mauro Carvalho Chehab <mchehab@...radead.org>,
	DLOS <davinci-linux-open-source@...ux.davincidsp.com>,
	Hans Verkuil <hans.verkuil@...co.com>,
	"Lad, Prabhakar" <prabhakar.lad@...com>,
	Manjunath Hadli <manjunath.hadli@...com>
Subject: [PATCH] adv7343: use devm_kzalloc() instead of kzalloc()

I2C drivers can use devm_kzalloc() too in their .probe() methods. Doing so
simplifies their clean up paths.

Signed-off-by: Lad, Prabhakar <prabhakar.lad@...com>
Signed-off-by: Manjunath Hadli <manjunath.hadli@...com>
---
 drivers/media/i2c/adv7343.c |   13 ++++---------
 1 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/media/i2c/adv7343.c b/drivers/media/i2c/adv7343.c
index 2b5aa67..ceaf548 100644
--- a/drivers/media/i2c/adv7343.c
+++ b/drivers/media/i2c/adv7343.c
@@ -397,7 +397,8 @@ static int adv7343_probe(struct i2c_client *client,
 	v4l_info(client, "chip found @ 0x%x (%s)\n",
 			client->addr << 1, client->adapter->name);
 
-	state = kzalloc(sizeof(struct adv7343_state), GFP_KERNEL);
+	state = devm_kzalloc(&client->dev, sizeof(struct adv7343_state),
+			     GFP_KERNEL);
 	if (state == NULL)
 		return -ENOMEM;
 
@@ -428,19 +429,14 @@ static int adv7343_probe(struct i2c_client *client,
 				       ADV7343_GAIN_DEF);
 	state->sd.ctrl_handler = &state->hdl;
 	if (state->hdl.error) {
-		int err = state->hdl.error;
-
 		v4l2_ctrl_handler_free(&state->hdl);
-		kfree(state);
-		return err;
+		return state->hdl.error;
 	}
 	v4l2_ctrl_handler_setup(&state->hdl);
 
 	err = adv7343_initialize(&state->sd);
-	if (err) {
+	if (err)
 		v4l2_ctrl_handler_free(&state->hdl);
-		kfree(state);
-	}
 	return err;
 }
 
@@ -451,7 +447,6 @@ static int adv7343_remove(struct i2c_client *client)
 
 	v4l2_device_unregister_subdev(sd);
 	v4l2_ctrl_handler_free(&state->hdl);
-	kfree(state);
 
 	return 0;
 }
-- 
1.7.4.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ