Re: [PATCH 1/1]mmc: fix division by zero when calculate mmc erase time
From: Linus Walleij
Date: Thu Feb 24 2011 - 07:35:50 EST
2011/2/24 Chuanxiao Dong <chuanxiao.dong@xxxxxxxxx>:
> Since if clock gating feature is enabled, the clock frequency may be zero when
> host clock is gated. In such scenario, mmc_set_mmc_erase_timeout() may have a
> division by zero bug.
> So this patch used mmc_host_clk_rate() to fix this.
> Signed-off-by: Chuanxiao Dong <chuanxiao.dong@xxxxxxxxx>
Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Actually I think these divide-by zero bugs were there before since clock
0 is perfectly legal, we just didn't trigger them before.
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