diff options
| author |   Gustavo A. R. Silva <gustavo@embeddedor.com> | 2020-02-11 08:47:04 -0600 |
|---|---|---|
| committer |   Wolfram Sang <wsa@the-dreams.de> | 2020-02-13 09:29:30 +0100 |
| commit | 54498e8070e19e74498a72c7331348143e7e1f8c (patch) | |
| tree | b5e98b1662093294b2a64a93b641ed909e36dda5 /drivers/macintosh/therm_windtunnel.c | |
| parent | i2c: jz4780: silence log flood on txabrt (diff) | |
| download | linux-dev-54498e8070e19e74498a72c7331348143e7e1f8c.tar.xz linux-dev-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 <David.Laight@ACULAB.COM>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions