[PATCH v6 1/2] tty: hvc: pass DMA capable memory to put_chars()

Jiri Slaby jirislaby at kernel.org
Fri Aug 13 15:53:51 AEST 2021


Hi,

On 12. 08. 21, 14:26, kernel test robot wrote:
>>> drivers/tty/hvc/hvc_console.c:190:26: warning: variable 'hp' is uninitialized when used here [-Wuninitialized]
>             spin_unlock_irqrestore(&hp->c_lock, flags);
>                                     ^~
>     drivers/tty/hvc/hvc_console.c:149:23: note: initialize the variable 'hp' to silence this warning
>             struct hvc_struct *hp;
>                                  ^
>                                   = NULL

So you clearly didn't test your change as it would crash quite 
instantly. I wonder, where do you intend to get hp from in the 
console::print() hook?

thanks,
-- 
js
suse labs


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