6.6-stable review patch. If anyone has any objections, please let me know.
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From: Marc Kleine-Budde mkl@pengutronix.de
commit 3e54d3b4a8437b6783d4145c86962a2aa51022f3 upstream.
Commit 2603be9e8167 ("can: gs_usb: gs_can_open(): improve error handling") added missing error handling to the gs_can_open() function.
The driver uses 2 USB anchors to track the allocated URBs: the TX URBs in struct gs_can::tx_submitted for each netdev and the RX URBs in struct gs_usb::rx_submitted for the USB device. gs_can_open() allocates the RX URBs, while TX URBs are allocated during gs_can_start_xmit().
The cleanup in gs_can_open() kills all anchored dev->tx_submitted URBs (which is not necessary since the netdev is not yet registered), but misses the parent->rx_submitted URBs.
Fix the problem by killing the rx_submitted instead of the tx_submitted.
Fixes: 2603be9e8167 ("can: gs_usb: gs_can_open(): improve error handling") Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20251210-gs_usb-fix-error-handling-v1-1-d6a5a03f10b... Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/can/usb/gs_usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -1071,7 +1071,7 @@ out_usb_free_urb: usb_free_urb(urb); out_usb_kill_anchored_urbs: if (!parent->active_channels) { - usb_kill_anchored_urbs(&dev->tx_submitted); + usb_kill_anchored_urbs(&parent->rx_submitted);
if (dev->feature & GS_CAN_FEATURE_HW_TIMESTAMP) gs_usb_timestamp_stop(parent);