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i2c: tegra: Handle potential error of tegra_i2c_flush_fifos()

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Technically the tegra_i2c_flush_fifos() may fail and transfer should be
aborted in this case, but this shouldn't ever happen in practice unless
there is a bug somewhere in the driver. Let's add the error check just
for completeness.

Reviewed-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
Dmitry Osipenko 2020-09-30 01:18:46 +03:00 committed by Wolfram Sang
parent e4fc2efbc3
commit c5418d4cc9
1 changed files with 3 additions and 1 deletions
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4
drivers/i2c/busses/i2c-tegra.c
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@ -1177,7 +1177,9 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
bool dma;
u16 xfer_time = 100;
tegra_i2c_flush_fifos(i2c_dev);
err = tegra_i2c_flush_fifos(i2c_dev);
if (err)
return err;
i2c_dev->msg_buf = msg->buf;
i2c_dev->msg_buf_remaining = msg->len;