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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Alan Cox <alan@linux.intel.com>,
	linux-media@vger.kernel.org, devel@driverdev.osuosl.org,
	kernel-janitors@vger.kernel.org
Subject: [patch] Staging: atomisp: kfreeing a devm allocated pointer
Date: Tue, 14 Mar 2017 07:53:52 +0000	[thread overview]
Message-ID: <20170314075352.GA6274@mwanda> (raw)

We shouldn't pass devm allocated pointers to kfree() or it leads to a
double free.

Fixes: a49d25364dfb ("staging/atomisp: Add support for the Intel IPU v2")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/staging/media/atomisp/i2c/imx/otp_brcc064_e2prom.c b/drivers/staging/media/atomisp/i2c/imx/otp_brcc064_e2prom.c
index 242e934a6030..b11f90c5960c 100644
--- a/drivers/staging/media/atomisp/i2c/imx/otp_brcc064_e2prom.c
+++ b/drivers/staging/media/atomisp/i2c/imx/otp_brcc064_e2prom.c
@@ -69,7 +69,6 @@ void *brcc064_otp_read(struct v4l2_subdev *sd, u8 dev_addr,
 
 		r = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
 		if (r != ARRAY_SIZE(msg)) {
-			kfree(buffer);
 			dev_err(&client->dev, "read failed at 0x%03x\n", addr);
 			return NULL;
 		}
diff --git a/drivers/staging/media/atomisp/i2c/imx/otp_e2prom.c b/drivers/staging/media/atomisp/i2c/imx/otp_e2prom.c
index ce4e7ab7781c..73d041f97811 100644
--- a/drivers/staging/media/atomisp/i2c/imx/otp_e2prom.c
+++ b/drivers/staging/media/atomisp/i2c/imx/otp_e2prom.c
@@ -79,7 +79,6 @@ void *e2prom_otp_read(struct v4l2_subdev *sd, u8 dev_addr,
 
 		r = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
 		if (r != ARRAY_SIZE(msg)) {
-			kfree(buffer);
 			dev_err(&client->dev, "read failed at 0x%03x\n", addr);
 			return NULL;
 		}

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Alan Cox <alan@linux.intel.com>,
	linux-media@vger.kernel.org, devel@driverdev.osuosl.org,
	kernel-janitors@vger.kernel.org
Subject: [patch] Staging: atomisp: kfreeing a devm allocated pointer
Date: Tue, 14 Mar 2017 10:53:52 +0300	[thread overview]
Message-ID: <20170314075352.GA6274@mwanda> (raw)

We shouldn't pass devm allocated pointers to kfree() or it leads to a
double free.

Fixes: a49d25364dfb ("staging/atomisp: Add support for the Intel IPU v2")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/staging/media/atomisp/i2c/imx/otp_brcc064_e2prom.c b/drivers/staging/media/atomisp/i2c/imx/otp_brcc064_e2prom.c
index 242e934a6030..b11f90c5960c 100644
--- a/drivers/staging/media/atomisp/i2c/imx/otp_brcc064_e2prom.c
+++ b/drivers/staging/media/atomisp/i2c/imx/otp_brcc064_e2prom.c
@@ -69,7 +69,6 @@ void *brcc064_otp_read(struct v4l2_subdev *sd, u8 dev_addr,
 
 		r = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
 		if (r != ARRAY_SIZE(msg)) {
-			kfree(buffer);
 			dev_err(&client->dev, "read failed at 0x%03x\n", addr);
 			return NULL;
 		}
diff --git a/drivers/staging/media/atomisp/i2c/imx/otp_e2prom.c b/drivers/staging/media/atomisp/i2c/imx/otp_e2prom.c
index ce4e7ab7781c..73d041f97811 100644
--- a/drivers/staging/media/atomisp/i2c/imx/otp_e2prom.c
+++ b/drivers/staging/media/atomisp/i2c/imx/otp_e2prom.c
@@ -79,7 +79,6 @@ void *e2prom_otp_read(struct v4l2_subdev *sd, u8 dev_addr,
 
 		r = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
 		if (r != ARRAY_SIZE(msg)) {
-			kfree(buffer);
 			dev_err(&client->dev, "read failed at 0x%03x\n", addr);
 			return NULL;
 		}

             reply	other threads:[~2017-03-14  7:53 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-14  7:53 Dan Carpenter [this message]
2017-03-14  7:53 ` [patch] Staging: atomisp: kfreeing a devm allocated pointer Dan Carpenter

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