Re: [PATCH] io_uring: fix shadowed variable ret return code being not checked
From: Jens Axboe
Date: Mon May 06 2019 - 12:22:33 EST
On 5/5/19 4:01 PM, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> Currently variable ret is declared in a while-loop code block that
> shadows another variable ret. When an error occurs in the while-loop
> the error return in ret is not being set in the outer code block and
> so the error check on ret is always going to be checking on the wrong
> ret variable resulting in check that is always going to be true and
> a premature return occurs.
> Fix this by removing the declaration of the inner while-loop variable
> ret so that shadowing does not occur.