+struct pnp_resource *pnp_get_pnp_resource(struct pnp_dev *dev,
+ unsigned int type, unsigned int num)
+{
+ struct pnp_resource_table *res = dev->res;
+
+ switch (type) {
+ case IORESOURCE_IO:
+ if (num >= PNP_MAX_PORT)
+ return NULL;
+ return &res->port[num];
+ case IORESOURCE_MEM:
+ if (num >= PNP_MAX_MEM)
+ return NULL;
+ return &res->mem[num];
+ case IORESOURCE_IRQ:
+ if (num >= PNP_MAX_IRQ)
+ return NULL;
+ return &res->irq[num];
+ case IORESOURCE_DMA:
+ if (num >= PNP_MAX_DMA)
+ return NULL;
+ return &res->dma[num];
+ }
+ return NULL;
+}