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Commit 02a78e65 authored by Alexander Stein's avatar Alexander Stein Committed by Greg Kroah-Hartman
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i2c: imx-lpi2c: clean rx/tx buffers upon new message 



[ Upstream commit 987dd36c0141f6ab9f0fbf14d6b2ec3342dedb2f ]

When start sending a new message clear the Rx & Tx buffer pointers in
order to avoid using stale pointers.

Signed-off-by: default avatarAlexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: default avatarEmanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: default avatarWolfram Sang <wsa@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 1ef56397

drivers/i2c/busses/i2c-imx-lpi2c.c

+2 −0
Original line number Diff line number Diff line
@@ -468,6 +468,8 @@ static int lpi2c_imx_xfer(struct i2c_adapter *adapter, 
		if (num == 1 && msgs[0].len == 0)

			goto stop;



		lpi2c_imx->rx_buf = NULL;

		lpi2c_imx->tx_buf = NULL;

		lpi2c_imx->delivered = 0;

		lpi2c_imx->msglen = msgs[i].len;

		init_completion(&lpi2c_imx->complete);