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i2c: riic: avoid potential division by zero

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[ Upstream commit 7890fce6201aed46d3576e3d641f9ee5c1f0e16f ]

Value comes from DT, so it could be 0. Unlikely, but could be.

Signed-off-by: Wolfram Sang <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Wolfram Sang 2023-09-06 22:00:23 +02:00 • committed by Greg Kroah-Hartman
commit 9a732aad7d
1 changed files with 1 additions and 1 deletions
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drivers/i2c/busses/i2c-riic.c
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@ -312,7 +312,7 @@ static int riic_init_hw(struct riic_dev *riic, struct i2c_timings *t)
* frequency with only 62 clock ticks max (31 high, 31 low).
* Aim for a duty of 60% LOW, 40% HIGH.
*/
total_ticks = DIV_ROUND_UP(rate, t->bus_freq_hz);
total_ticks = DIV_ROUND_UP(rate, t->bus_freq_hz ?: 1);
for (cks = 0; cks < 7; cks++) {
/*