[PATCH V2] raw/ioat: Check for the NULL pointer after calling malloc

[Bruce Richardson]

On Wed, Jul 06, 2022 at 02:55:48PM +0800, 835703180 at qq.com wrote:
> From: Shiqi Liu <835703180 at qq.com>
> 
> As the possible failure of the malloc(), the not_checked and
> checked could be NULL pointer.
> Therefore, it should be better to check it in order to avoid
> the dereference of the NULL pointer.
> 
> Fixes: b7aaf417f93 ("raw/ioat: add bus driver for device scanning automatically")
> Signed-off-by: Shiqi Liu <835703180 at qq.com>
> ---
Acked-by: Bruce Richardson <bruce.richardson at intel.com>