static inline char *make_irq_label(const char *orig)
{
- return kstrdup_and_replace(orig, '/', ':', GFP_KERNEL);
+ char *new;
+
+ if (!orig)
+ return NULL;
+
+ new = kstrdup_and_replace(orig, '/', ':', GFP_KERNEL);
+ if (!new)
+ return ERR_PTR(-ENOMEM);
+
+ return new;
}
static inline void free_irq_label(const char *label)
irqflags |= IRQF_ONESHOT;
label = make_irq_label(line->req->label);
- if (!label)
- return -ENOMEM;
+ if (IS_ERR(label))
+ return PTR_ERR(label);
/* Request a thread to read the events */
ret = request_threaded_irq(irq, edge_irq_handler, edge_irq_thread,
goto out_free_le;
label = make_irq_label(le->label);
- if (!label) {
- ret = -ENOMEM;
+ if (IS_ERR(label)) {
+ ret = PTR_ERR(label);
goto out_free_le;
}