Hi Linus,
On Wed, Nov 03, 2010 at 10:22:50AM +0100, Linus Walleij wrote:
> +/*
> + * mmc_host_clk_exit - shut down clock gating code
> + * @host: host with potential clock to control
> + */
> +static inline void mmc_host_clk_exit(struct mmc_host *host)
> +{
> + /*
> + * Wait for any outstanding gate and then make sure we're
> + * ungated before exiting.
> + */
> + if (cancel_work_sync(&host->clk_disable_work))
> + mmc_host_clk_gate_delayed(host);
> + if (host->clk_gated)
> + mmc_host_clk_ungate(host);
> + BUG_ON(host->clk_requests > 0);
> +}
I just hit the BUG_ON() above, when doing "rmmod sdhci-pci" on my x86
laptop running today's linux-next. There was *no* SD card inserted,
and hadn't been one inserted all boot.
Let me know if you want me to try adding any extra debugging/patches.
Thanks,
--
Chris Ball <c...@laptop.org> <http://printf.net/>
One Laptop Per Child
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