/* If we are below the current region then a new region is required.
* Subtle, allocate a new region at the position but make it zero
- * size such that we can guarentee to record the reservation. */
+ * size such that we can guarantee to record the reservation. */
if (&rg->link == head || t < rg->from) {
nrg = kmalloc(sizeof(*nrg), GFP_KERNEL);
- if (nrg == 0)
+ if (!nrg)
return -ENOMEM;
nrg->from = f;
nrg->to = f;