[PATCH 2/3] pwm: bcm2835: prevent division by zero
stefan.wahren at i2se.com
Wed Dec 2 09:08:45 PST 2015
Am 02.12.2015 um 00:16 schrieb Eric Anholt:
> Stefan Wahren <stefan.wahren at i2se.com> writes:
>> It's possible that the pwm clock become an orphan. So better
>> check the result of clk_get_rate in order to prevent a division
>> by zero.
> How would we lose our clock when we're keeping the clock enabled from
> driver probe until remove?
It's not the problem that we lose the clock inside this driver. The pwm
clock could be initial assigned to a unregistered parent clock like "GND".
I'm refering to this discussion:
> Patches 1 and 3 are:
> Reviewed-by: Eric Anholt <eric at anholt.net>
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