This is a note to let you know that I've just added the patch titled
can: usb_8dev: Fix memory leak of priv->cmd_msg_buffer
to the 4.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
can-usb_8dev-fix-memory-leak-of-priv-cmd_msg_buffer.patch
and it can be found in the queue-4.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 7c42631376306fb3f34d51fda546b50a9b6dd6ec Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Date: Thu, 2 Mar 2017 12:03:40 +0100
Subject: can: usb_8dev: Fix memory leak of priv->cmd_msg_buffer
From: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
commit 7c42631376306fb3f34d51fda546b50a9b6dd6ec upstream.
The priv->cmd_msg_buffer is allocated in the probe function, but never
kfree()ed. This patch converts the kzalloc() to resource-managed
kzalloc.
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/can/usb/usb_8dev.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
--- 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_int
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_int
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_int
cleanup_unregister_candev:
unregister_netdev(priv->netdev);
-cleanup_cmd_msg_buffer:
- kfree(priv->cmd_msg_buffer);
-
cleanup_candev:
free_candev(netdev);
Patches currently in stable-queue which might be from mkl@xxxxxxxxxxxxxx are
queue-4.10/can-gs_usb-don-t-use-stack-memory-for-usb-transfers.patch
queue-4.10/can-usb_8dev-fix-memory-leak-of-priv-cmd_msg_buffer.patch