diff options
Diffstat (limited to 'drivers/crypto/intel/qat/qat_common/adf_clock.c')
| -rw-r--r-- | drivers/crypto/intel/qat/qat_common/adf_clock.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/crypto/intel/qat/qat_common/adf_clock.c b/drivers/crypto/intel/qat/qat_common/adf_clock.c index 01e0a389e462..cf89f57de2a7 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_clock.c +++ b/drivers/crypto/intel/qat/qat_common/adf_clock.c @@ -83,6 +83,9 @@ static int measure_clock(struct adf_accel_dev *accel_dev, u32 *frequency) } delta_us = timespec_to_us(&ts3) - timespec_to_us(&ts1); + if (!delta_us) + return -EINVAL; + temp = (timestamp2 - timestamp1) * ME_CLK_DIVIDER * 10; temp = DIV_ROUND_CLOSEST_ULL(temp, delta_us); /* |