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i2c: riic: avoid potential division by zero
author
Wolfram Sang
<wsa+renesas@sang-engineering.com>
Wed, 6 Sep 2023 20:00:23 +0000
(22:00 +0200)
committer
Wolfram Sang
<wsa@kernel.org>
Tue, 19 Sep 2023 09:11:09 +0000
(11:11 +0200)
Value comes from DT, so it could be 0. Unlikely, but could be.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
drivers/i2c/busses/i2c-riic.c
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diff --git
a/drivers/i2c/busses/i2c-riic.c
b/drivers/i2c/busses/i2c-riic.c
index f0ee8871d5ae1b2c1b2f127de0a7e03221c93812..e43ff483c56ece3a757fd8d0a2fce70e5e15b741 100644
(file)
--- a/
drivers/i2c/busses/i2c-riic.c
+++ b/
drivers/i2c/busses/i2c-riic.c
@@
-313,7
+313,7
@@
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++) {
/*