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i2c: octeon: check correct size of maximum RECV_LEN packet 

[ Upstream commit 1b2cfa2d1d ]

I2C_SMBUS_BLOCK_MAX defines already the maximum number as defined in the
SMBus 2.0 specs. No reason to add one to it.

Fixes: 886f6f8337 ("i2c: octeon: Support I2C_M_RECV_LEN")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Robert Richter <rric@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Wolfram Sang 2021-01-09 13:43:08 +01:00 committed by Greg Kroah-Hartman
parent 485e0255c1
commit 57f0f0ddf9
1 changed files with 1 additions and 1 deletions
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2
drivers/i2c/busses/i2c-octeon-core.c
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@ -347,7 +347,7 @@ static int octeon_i2c_read(struct octeon_i2c *i2c, int target,
if (result)
return result;
if (recv_len && i == 0) {
if (data[i] > I2C_SMBUS_BLOCK_MAX + 1)
if (data[i] > I2C_SMBUS_BLOCK_MAX)
return -EPROTO;
length += data[i];
}