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mfd: Fix off-by-one value range checking for tps6507x 

If bytes == (TPS6507X_MAX_REGISTER + 1), we have a buffer overflow when
doing memcpy(&msg[1], src, bytes).

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Axel Lin 2010-10-13 10:44:39 +08:00 committed by Samuel Ortiz
parent 7745cc8c3b
commit a8d6aa08dd
1 changed files with 1 additions and 1 deletions
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2
drivers/mfd/tps6507x.c
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@ -68,7 +68,7 @@ static int tps6507x_i2c_write_device(struct tps6507x_dev *tps6507x, char reg,
u8 msg[TPS6507X_MAX_REGISTER + 1];
int ret;
if (bytes > (TPS6507X_MAX_REGISTER + 1))
if (bytes > TPS6507X_MAX_REGISTER)
return -EINVAL;
msg[0] = reg;