5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Marek Vasut <marex@xxxxxxx> [ Upstream commit 294b29f15469e90893c2b72a738a962ee02a12eb ] In case the XIIC does TX/RX transfer, make sure no other kernel thread can start another TX transfer at the same time. This could happen since the driver only checks tx_msg for being non-NULL and returns -EBUSY in that case, however it is necessary to check also rx_msg for the same. Signed-off-by: Marek Vasut <marex@xxxxxxx> Acked-by: Michal Simek <michal.simek@xxxxxxxxxx> Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxx> Stable-dep-of: 1d4a1adbed25 ("i2c: xiic: Try re-initialization on bus busy timeout") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/i2c/busses/i2c-xiic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c index c6447b2769f9d..b91ea900aae3a 100644 --- a/drivers/i2c/busses/i2c-xiic.c +++ b/drivers/i2c/busses/i2c-xiic.c @@ -545,7 +545,7 @@ static int xiic_busy(struct xiic_i2c *i2c) int tries = 3; int err; - if (i2c->tx_msg) + if (i2c->tx_msg || i2c->rx_msg) return -EBUSY; /* In single master mode bus can only be busy, when in use by this -- 2.43.0