KVM: x86: Replace IS_ERR() with IS_ERR_VALUE()

Avoid type casts that are needed for IS_ERR() and use
IS_ERR_VALUE() instead.

Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/202211161718436948912@zte.com.cn
Signed-off-by: Sean Christopherson <seanjc@google.com>

Author: ye xingchen

arch/x86/kvm/x86.c

@@ -12274,7 +12274,7 @@ void __user * __x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa,
 		 */
 		hva = vm_mmap(NULL, 0, size, PROT_READ | PROT_WRITE,
 			      MAP_SHARED | MAP_ANONYMOUS, 0);
-		if (IS_ERR((void *)hva))
+		if (IS_ERR_VALUE(hva))
 			return (void __user *)hva;
 	} else {
 		if (!slot || !slot->npages)