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regmap-i2c: Off by one in regmap_i2c_smbus_i2c_read/write()

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The commit message says that we are allowed to read and write up to 32
bytes but the code only allows us to write 31 bytes.  In other words,
the ">=" should be changed to ">".  But this is already checked in
regmap_raw_read()/write() so we can just remove the if statemetents.

Fixes: 29332534e2 ("regmap-i2c: Add smbus i2c block support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Dan Carpenter 2018-02-08 10:25:28 +03:00 committed by Mark Brown
parent a75de77211
commit 86effbe0d1
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1 changed files with 0 additions and 4 deletions
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4
drivers/base/regmap/regmap-i2c.c
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@ -217,8 +217,6 @@ static int regmap_i2c_smbus_i2c_write(void *context, const void *data,
if (count < 1)
return -EINVAL;
if (count >= I2C_SMBUS_BLOCK_MAX)
return -E2BIG;
--count;
return i2c_smbus_write_i2c_block_data(i2c, ((u8 *)data)[0], count,
@ -235,8 +233,6 @@ static int regmap_i2c_smbus_i2c_read(void *context, const void *reg,
if (reg_size != 1 || val_size < 1)
return -EINVAL;
if (val_size >= I2C_SMBUS_BLOCK_MAX)
return -E2BIG;
ret = i2c_smbus_read_i2c_block_data(i2c, ((u8 *)reg)[0], val_size, val);
if (ret == val_size)