The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 
		
	
					 | 
			||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| w5100.c | ||
| w5300.c | ||
				The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 
		
	
					 | 
			||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| w5100.c | ||
| w5300.c | ||