Le 25/05/2023 à 05:33, 张网 a écrit :
Hi Christophe, Thanks for your suggestions. However, both clk_get_rate and clk_prepare_enable will return 0 if i2c->clk is NULL, so I think we may not need to take this issue into account. Regards, Wang Zhang
Ouch! For some reaon, when I read: > + rate = clk_get_rate(i2c->clk) / 1000;I read "if i2c->clk is NULL, then the i2c pointer is NULL as well and is dereferenced".
:/ sorry for the noise. CJ (slightly ashamed)