--- a5d585dcdaa31ec315f1ed650312deef022f4f9c
+++ 68b5957f107cd4c5e675576457c103330458de11
@@ -2408,7 +2408,7 @@ static void pkt_release_dev(struct pktcd
 	pkt_shrink_pktlist(pd);
 }
 
-static struct pktcdvd_device *pkt_find_dev_from_minor(unsigned int dev_minor)
+static struct pktcdvd_device *pkt_find_dev_from_minor(int dev_minor)
 {
 	if (dev_minor >= MAX_WRITERS)
 		return NULL;