On Wed, Jan 28, 2015 at 09:43:16AM +0800, Wenyou Yang wrote:
> -#ifdef CONFIG_AT91_SLOW_CLOCK
> -                             /* copy slow_clock handler to SRAM, and call it 
> */
> -                             memcpy(slow_clock, at91_slow_clock, 
> at91_slow_clock_sz);
> -#endif
>                               slow_clock(at91_pmc_base, at91_ramc_base[0],
>                                          at91_ramc_base[1],
>                                          at91_pm_data.memctrl);
> @@ -272,6 +268,9 @@ static void __init at91_pm_sram_init(void)
>       sram_pbase = gen_pool_virt_to_phys(sram_pool, sram_base);
>       slow_clock = __arm_ioremap_exec(sram_pbase, at91_slow_clock_sz, false);
>  
> +     /* Copy the slow_clock handler to SRAM */
> +     memcpy(slow_clock, at91_slow_clock, at91_slow_clock_sz);
> +

Why is this code not using the fncpy() support for copying functions.
Why is it not checking the return code from __arm_ioremap_exec() or
gen_pool_virt_to_phys() for failure?

This looks like quite a massive review failure when this code was
originally merged.  It needs fixing.

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