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| author | Gustavo A. R. Silva <[email protected]> | 2020-02-11 14:47:04 +0000 |
|---|---|---|
| committer | Wolfram Sang <[email protected]> | 2020-02-13 08:29:30 +0000 |
| commit | 54498e8070e19e74498a72c7331348143e7e1f8c (patch) | |
| tree | b5e98b1662093294b2a64a93b641ed909e36dda5 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | i2c: jz4780: silence log flood on txabrt (diff) | |
| download | kernel-54498e8070e19e74498a72c7331348143e7e1f8c.tar.gz kernel-54498e8070e19e74498a72c7331348143e7e1f8c.zip | |
i2c: altera: Fix potential integer overflow
Factor out 100 from the equation and do 32-bit arithmetic (3 * clk_mhz / 10)
instead of 64-bit.
Notice that clk_mhz is MHz, so the multiplication will never wrap 32 bits
and there is no need for div_u64().
Addresses-Coverity: 1458369 ("Unintentional integer overflow")
Fixes: 0560ad576268 ("i2c: altera: Add Altera I2C Controller driver")
Suggested-by: David Laight <[email protected]>
Signed-off-by: Gustavo A. R. Silva <[email protected]>
Reviewed-by: Thor Thayer <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions