diff options
Diffstat (limited to 'drivers/tpm/tpm_tis_st33zp24_spi.c')
| -rw-r--r-- | drivers/tpm/tpm_tis_st33zp24_spi.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/tpm/tpm_tis_st33zp24_spi.c b/drivers/tpm/tpm_tis_st33zp24_spi.c index dcf55ee03a..c4c5e05286 100644 --- a/drivers/tpm/tpm_tis_st33zp24_spi.c +++ b/drivers/tpm/tpm_tis_st33zp24_spi.c @@ -431,7 +431,8 @@ static int st33zp24_spi_recv_data(struct udevice *dev, u8 *buf, size_t count) static int st33zp24_spi_recv(struct udevice *dev, u8 *buf, size_t count) { struct tpm_chip *chip = dev_get_priv(dev); - int size, expected; + int size; + unsigned int expected; if (!chip) return -ENODEV; @@ -448,7 +449,7 @@ static int st33zp24_spi_recv(struct udevice *dev, u8 *buf, size_t count) } expected = get_unaligned_be32(buf + 2); - if (expected > count) { + if (expected > count || expected < TPM_HEADER_SIZE) { size = -EIO; goto out; } |