diff options
| author | Xiaoliang Yang <xiaoliang.yang_1@nxp.com> | 2021-12-23 15:39:28 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-12-23 09:45:55 -0800 |
| commit | eccffcf4657ab9a148faaa0eb354d2a091caf552 (patch) | |
| tree | e5aa871658d6d56d26c3bdd1c8664ac0b75534c2 /drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c | |
| parent | ae2778a64724f77fd6cad674461a045fb3307df7 (diff) | |
| download | linux-eccffcf4657ab9a148faaa0eb354d2a091caf552.tar.bz2 | |
net: stmmac: ptp: fix potentially overflowing expression
Convert the u32 variable to type u64 in a context where expression of
type u64 is required to avoid potential overflow.
Fixes: e9e3720002f6 ("net: stmmac: ptp: update tas basetime after ptp adjust")
Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Link: https://lore.kernel.org/r/20211223073928.37371-1-xiaoliang.yang_1@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c index 580cc035536b..be9b58b2abf9 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c @@ -102,7 +102,7 @@ static int stmmac_adjust_time(struct ptp_clock_info *ptp, s64 delta) time.tv_nsec = priv->plat->est->btr_reserve[0]; time.tv_sec = priv->plat->est->btr_reserve[1]; basetime = timespec64_to_ktime(time); - cycle_time = priv->plat->est->ctr[1] * NSEC_PER_SEC + + cycle_time = (u64)priv->plat->est->ctr[1] * NSEC_PER_SEC + priv->plat->est->ctr[0]; time = stmmac_calc_tas_basetime(basetime, current_time_ns, |