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| author | Yangbo Lu <yangbo.lu@nxp.com> | 2021-03-23 16:02:29 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-24 12:10:03 -0700 |
| commit | f51d7bf1dbe5522c51c93fe8faa5f4abbdf339cd (patch) | |
| tree | 9bf2cbf2895eef9c81e4ec338c0dd9fa37b08812 /init | |
| parent | 6ab4c3117aec4e08007d9e971fa4133e1de1082d (diff) | |
| download | linux-f51d7bf1dbe5522c51c93fe8faa5f4abbdf339cd.tar.bz2 | |
ptp_qoriq: fix overflow in ptp_qoriq_adjfine() u64 calcalation
Current calculation for diff of TMR_ADD register value may have
64-bit overflow in this code line, when long type scaled_ppm is
large.
adj *= scaled_ppm;
This patch is to resolve it by using mul_u64_u64_div_u64().
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions