diff options
| author | Alexander Stein <alexander.stein@ew.tq-group.com> | 2023-01-30 16:32:46 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-04-20 12:02:12 +0200 |
| commit | 5b447120c05268349369e1ce736226126ea83ce0 (patch) | |
| tree | 63080014c11f4606c4d7634a0f60d8bc44e6f8ce | |
| parent | dd7a49a3eaf723a01b2fdf153f98450a82b0b0fe (diff) | |
| download | linux-5b447120c05268349369e1ce736226126ea83ce0.tar.gz linux-5b447120c05268349369e1ce736226126ea83ce0.tar.bz2 linux-5b447120c05268349369e1ce736226126ea83ce0.zip | |
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: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/i2c/busses/i2c-imx-lpi2c.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-imx-lpi2c.c index ca4d55412657..511d332f4732 100644 --- a/drivers/i2c/busses/i2c-imx-lpi2c.c +++ b/drivers/i2c/busses/i2c-imx-lpi2c.c @@ -475,6 +475,8 @@ 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); |