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Date: Fri, 3 Mar 2017 14:55:34 +0100
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, linux-can@...r.kernel.org,
kernel@...gutronix.de, Marc Kleine-Budde <mkl@...gutronix.de>,
linux-stable <stable@...r.kernel.org>
Subject: [PATCH 3/4] can: usb_8dev: Fix memory leak of priv->cmd_msg_buffer
The priv->cmd_msg_buffer is allocated in the probe function, but never
kfree()ed. This patch converts the kzalloc() to resource-managed
kzalloc.
Cc: linux-stable <stable@...r.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
drivers/net/can/usb/usb_8dev.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c
index 108a30e15097..d000cb62d6ae 100644
--- a/drivers/net/can/usb/usb_8dev.c
+++ b/drivers/net/can/usb/usb_8dev.c
@@ -951,8 +951,8 @@ static int usb_8dev_probe(struct usb_interface *intf,
for (i = 0; i < MAX_TX_URBS; i++)
priv->tx_contexts[i].echo_index = MAX_TX_URBS;
- priv->cmd_msg_buffer = kzalloc(sizeof(struct usb_8dev_cmd_msg),
- GFP_KERNEL);
+ priv->cmd_msg_buffer = devm_kzalloc(&intf->dev, sizeof(struct usb_8dev_cmd_msg),
+ GFP_KERNEL);
if (!priv->cmd_msg_buffer)
goto cleanup_candev;
@@ -966,7 +966,7 @@ static int usb_8dev_probe(struct usb_interface *intf,
if (err) {
netdev_err(netdev,
"couldn't register CAN device: %d\n", err);
- goto cleanup_cmd_msg_buffer;
+ goto cleanup_candev;
}
err = usb_8dev_cmd_version(priv, &version);
@@ -987,9 +987,6 @@ static int usb_8dev_probe(struct usb_interface *intf,
cleanup_unregister_candev:
unregister_netdev(priv->netdev);
-cleanup_cmd_msg_buffer:
- kfree(priv->cmd_msg_buffer);
-
cleanup_candev:
free_candev(netdev);
--
2.11.0
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