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tpm/tpm_i2c_atmel: Return -E2BIG when the transfer is incomplete
[ Upstream commit442601e87a
] Return -E2BIG when the transfer is incomplete. The upper layer does not retry, so not doing that is incorrect behaviour. Cc: stable@vger.kernel.org Fixes:a2871c62e1
("tpm: Add support for Atmel I2C TPMs") Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -69,6 +69,10 @@ static int i2c_atmel_send(struct tpm_chip *chip, u8 *buf, size_t len)
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if (status < 0)
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return status;
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/* The upper layer does not support incomplete sends. */
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if (status != len)
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return -E2BIG;
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return 0;
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}
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