esp->ops = &sun3x_esp_ops;
res = platform_get_resource(dev, IORESOURCE_MEM, 0);
- if (!res && !res->start)
+ if (!res || !res->start)
goto fail_unlink;
esp->regs = ioremap_nocache(res->start, 0x20);
goto fail_unmap_regs;
res = platform_get_resource(dev, IORESOURCE_MEM, 1);
- if (!res && !res->start)
+ if (!res || !res->start)
goto fail_unmap_regs;
esp->dma_regs = ioremap_nocache(res->start, 0x10);