On Tue, Jul 14, 2020 at 05:23:51PM +0300, Dan Carpenter wrote:
> The sev_pin_memory() function was modified to return error pointers
> instead of NULL but there are two problems. The first problem is that
> if "npages" is zero then it still returns NULL. Secondly, several of
> the callers were not updated to check for error pointers instead of
> NULL.
>
> Either one of these issues will lead to an Oops.
>
> Fixes: a8d908b5873c ("KVM: x86: report sev_pin_memory errors with PTR_ERR")
Explicit Cc: to stable needed for KVM patches.
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Reviewed-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
