On Tue, May 21, 2019 at 12:30:38AM -0400, Nicolas Pitre wrote: > Now imagine that MIN_NR_CONSOLES is defined to 10 instead of 1. > > What happens with allocated memory if the err_vc condition is met on the > 5th loop? Yes, vc->vc_screenbuf from the last loop is still not freed, right? I don't have idea to solve this one. Could please give some advice? Since we have to consider the err_vc condition.
> If err_vc_screenbuf condition is encountered on the 5th loop (curcons = > 4), what is the value of vc_cons[4].d? Isn't it the same as vc that you > just freed? > > > Nicolas Thanks for your explaination! You mean a double free situation may happen, right? But in vc_allocate() there is also such a kfree(vc) and vc_cons[currcons].d = NULL operation. This situation is really confusing me. Thanks Gen
