#include <linux/delay.h>
#include <linux/idr.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/c2port.h>
c2dev->dev = device_create(c2port_class, NULL, 0, c2dev,
"c2port%d", id);
- if (unlikely(!c2dev->dev)) {
- ret = -ENOMEM;
+ if (unlikely(IS_ERR(c2dev->dev))) {
+ ret = PTR_ERR(c2dev->dev);
goto error_device_create;
}
dev_set_drvdata(c2dev->dev, c2dev);