[S390] cio: Fix sparse warnings in blacklist.c.

sparse complains about signedness:

drivers/s390/cio/blacklist.c:132:28: warning: incorrect type in
argument 2 (different signedness)
drivers/s390/cio/blacklist.c:132:28: expected unsigned int *val
drivers/s390/cio/blacklist.c:132:28: got int *cssid
drivers/s390/cio/blacklist.c:136:28: warning: incorrect type in
argument 2 (different signedness)
drivers/s390/cio/blacklist.c:136:28: expected unsigned int *val
drivers/s390/cio/blacklist.c:136:28: got int *ssid
drivers/s390/cio/blacklist.c:140:28: warning: incorrect type in
argument 2 (different signedness)
drivers/s390/cio/blacklist.c:140:28: expected unsigned int *val
drivers/s390/cio/blacklist.c:140:28: got int *devno

cssid, ssid and devno are of course unsigned, so let's make the
variables unsigned as well.

Signed-off-by: Cornelia Huck <[e-mail]>
Signed-off-by: Martin Schwidefsky <[e-mail]>

drivers/s390/cio/blacklist.c

···
 	return 0;
 }
 
-static int parse_busid(char *str, int *cssid, int *ssid, int *devno,
-		       int msgtrigger)
+static int parse_busid(char *str, unsigned int *cssid, unsigned int *ssid,
+		       unsigned int *devno, int msgtrigger)
 {
 	char *str_work;
 	int val, rc, ret;
···
 static int blacklist_parse_parameters(char *str, range_action action,
 				      int msgtrigger)
 {
-	int from_cssid, to_cssid, from_ssid, to_ssid, from, to;
+	unsigned int from_cssid, to_cssid, from_ssid, to_ssid, from, to;
 	int rc, totalrc;
 	char *parm;
 	range_action ra;