random.c: use %pU to print UUIDs

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 7 deletions

diff --git a/drivers/char/random.c b/drivers/char/random.c
index dcd08635cf1b..8258982b49ec 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1245,12 +1245,8 @@ static int proc_do_uuid(ctl_table *table, int write,
         if (uuid[8] == 0)
                 generate_random_uuid(uuid);
 
-        sprintf(buf, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-"
-                "%02x%02x%02x%02x%02x%02x",
-                uuid[0],  uuid[1],  uuid[2],  uuid[3],
-                uuid[4],  uuid[5],  uuid[6],  uuid[7],
-                uuid[8],  uuid[9],  uuid[10], uuid[11],
-                uuid[12], uuid[13], uuid[14], uuid[15]);
+        sprintf(buf, "%pU", uuid);
+
         fake_table.data = buf;
         fake_table.maxlen = sizeof(buf);
 
@@ -1310,7 +1306,7 @@ ctl_table random_table[] = {
 
 /********************************************************************
  *
- * Random funtions for networking
+ * Random functions for networking
  *
  ********************************************************************/