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authorMarc Kleine-Budde <mkl@pengutronix.de>2017-03-02 12:03:40 +0100
committerMarc Kleine-Budde <mkl@pengutronix.de>2017-03-03 13:00:07 +0100
commit7c42631376306fb3f34d51fda546b50a9b6dd6ec (patch)
treed34ad66c8d1c6a8808b0a22b5cfeb5ac1abd97f4
parent540a27aef355e3fd8c598600d4a3c8f92127ee05 (diff)
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@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
-rw-r--r--drivers/net/can/usb/usb_8dev.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c
index 108a30e..d000cb6 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);