diff options
Diffstat (limited to 'drivers/char/tpm')
| -rw-r--r-- | drivers/char/tpm/tpm_i2c_stm_st33.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/char/tpm/tpm_i2c_stm_st33.c b/drivers/char/tpm/tpm_i2c_stm_st33.c index 48c4808d5a7a..4f70296f3a7f 100644 --- a/drivers/char/tpm/tpm_i2c_stm_st33.c +++ b/drivers/char/tpm/tpm_i2c_stm_st33.c @@ -441,7 +441,7 @@ again: */ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count) { - int size = 0, burstcnt, len; + int size = 0, burstcnt, len, ret; struct tpm_stm_dev *tpm_dev; tpm_dev = (struct tpm_stm_dev *)TPM_VPRIV(chip); @@ -455,7 +455,10 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count) if (burstcnt < 0) return burstcnt; len = min_t(int, burstcnt, count - size); - I2C_READ_DATA(tpm_dev, TPM_DATA_FIFO, buf + size, len); + ret = I2C_READ_DATA(tpm_dev, TPM_DATA_FIFO, buf + size, len); + if (ret < 0) + return ret; + size += len; } return size; |