staging: unisys: Fix format string mismatch in virthba.c

Fix format string mismatch in info_proc_read() within virthba.c.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/virthba/virthba.c

@@ -1400,7 +1400,7 @@ info_proc_read(struct file *file, char __user *buf, size_t len, loff_t *offset)
 		virthbainfo = VirtHbasOpen[i].virthbainfo;
 		length += sprintf(vbuf + length, "CHANSOCK is not defined.\n");
 
-		length += sprintf(vbuf + length, "MaxBuffLen:%d\n", MaxBuffLen);
+		length += sprintf(vbuf + length, "MaxBuffLen:%u\n", MaxBuffLen);
 
 		length += sprintf(vbuf + length, "\nvirthba result queue poll wait:%d usecs.\n",
 				  rsltq_wait_usecs);