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iio:ad5064: Make sure ad5064_i2c_write() returns 0 on success
i2c_master_send() returns the number of bytes transferred on success while
the ad5064 driver expects that the write() callback returns 0 on success.
Fix that by translating any non negative return value of i2c_master_send()
to 0.
Fixes: commit 6a17a0768f
("iio:dac:ad5064: Add support for the ad5629r and ad5669r")
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
parent
01bb70ae0b
commit
03fe472ef3
1 changed files with 7 additions and 1 deletions
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@ -598,10 +598,16 @@ static int ad5064_i2c_write(struct ad5064_state *st, unsigned int cmd,
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unsigned int addr, unsigned int val)
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{
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struct i2c_client *i2c = to_i2c_client(st->dev);
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int ret;
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st->data.i2c[0] = (cmd << 4) | addr;
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put_unaligned_be16(val, &st->data.i2c[1]);
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return i2c_master_send(i2c, st->data.i2c, 3);
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ret = i2c_master_send(i2c, st->data.i2c, 3);
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if (ret < 0)
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return ret;
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return 0;
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}
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static int ad5064_i2c_probe(struct i2c_client *i2c,
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