Hi Ulf,

According to your commit message, host->bus_ops is also always existed, isn't?

Best Regards,
Jaehoon Chung

On 05/30/2013 09:53 PM, Ulf Hansson wrote:
> From: Ulf Hansson <ulf.hans...@linaro.org>
> 
> For every bus_ops type the .remove callback always exist, thus there
> are no need to check the existence of it, before we decide to call it.
> 
> Signed-off-by: Ulf Hansson <ulf.hans...@linaro.org>
> ---
>  drivers/mmc/core/core.c |   11 +++--------
>  1 file changed, 3 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
> index e9a104b..d2ee282 100644
> --- a/drivers/mmc/core/core.c
> +++ b/drivers/mmc/core/core.c
> @@ -2483,9 +2483,7 @@ void mmc_stop_host(struct mmc_host *host)
>       mmc_bus_get(host);
>       if (host->bus_ops && !host->bus_dead) {
>               /* Calling bus_ops->remove() with a claimed host can deadlock */
> -             if (host->bus_ops->remove)
> -                     host->bus_ops->remove(host);
> -
> +             host->bus_ops->remove(host);
>               mmc_claim_host(host);
>               mmc_detach_bus(host);
>               mmc_power_off(host);
> @@ -2638,8 +2636,7 @@ int mmc_suspend_host(struct mmc_host *host)
>                        * bus_ops->remove() with a claimed host can
>                        * deadlock.)
>                        */
> -                     if (host->bus_ops->remove)
> -                             host->bus_ops->remove(host);
> +                     host->bus_ops->remove(host);
>                       mmc_claim_host(host);
>                       mmc_detach_bus(host);
>                       mmc_power_off(host);
> @@ -2722,9 +2719,7 @@ int mmc_pm_notify(struct notifier_block *notify_block,
>                       break;
>  
>               /* Calling bus_ops->remove() with a claimed host can deadlock */
> -             if (host->bus_ops->remove)
> -                     host->bus_ops->remove(host);
> -
> +             host->bus_ops->remove(host);
>               mmc_claim_host(host);
>               mmc_detach_bus(host);
>               mmc_power_off(host);
> 

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