backlight: cr_bllcd.c: fix a memory leak

Signed-off-by: Axel Lin <[e-mail]>
Cc: Thomas Hellstrom <[e-mail]>
Cc: Alan Hourihane <[e-mail]>
Cc: Richard Purdie <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/video/backlight/cr_bllcd.c

···
 	backlight_device_unregister(crp->cr_backlight_device);
 	lcd_device_unregister(crp->cr_lcd_device);
 	pci_dev_put(lpc_dev);
+	kfree(crp);
 
 	return 0;
 }