Marc Kleine-Budde 26359d362c can: m_can: m_can_tx_work_queue(): fix tx_skb race condition ... [ Upstream commit e04b2cfe61072c7966e1a5fb73dd1feb30c206ed ] The m_can_start_xmit() function checks if the cdev->tx_skb is NULL and returns with NETDEV_TX_BUSY in case tx_sbk is not NULL. There is a race condition in the m_can_tx_work_queue(), where first the skb is send to the driver and then the case tx_sbk is set to NULL. A TX complete IRQ might come in between and wake the queue, which results in tx_skb not being cleared yet. Fixes: f524f829b7 ("can: m_can: Create a m_can platform framework") Tested-by: Torin Cooper-Bennun <torin@maxiluxsystems.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-05-19 10:13:08 +02:00
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Kconfig	can: tcan4x5x: replace depends on REGMAP_SPI with depends on SPI	2020-11-15 18:24:36 +01:00
m_can_platform.c	can: m_can: Fix freeing of can device from peripherials	2020-11-15 18:33:45 +01:00
m_can.c	can: m_can: m_can_tx_work_queue(): fix tx_skb race condition	2021-05-19 10:13:08 +02:00
m_can.h	can: m_can: m_can_class_free_dev(): introduce new function	2020-11-15 18:33:42 +01:00
Makefile	can: tcan4x5x: Add tcan4x5x driver to the kernel	2019-07-24 10:31:54 +02:00
tcan4x5x.c	can: tcan4x5x: fix max register value	2021-04-07 15:00:07 +02:00