1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/s390/char/sclp_async.c b/drivers/s390/char/sclp_async.c
index b44462a6c6d3..7ad30e72f868 100644
--- a/drivers/s390/char/sclp_async.c
+++ b/drivers/s390/char/sclp_async.c
@@ -11,6 +11,7 @@
 #include <linux/device.h>
 #include <linux/stat.h>
 #include <linux/string.h>
+#include <linux/slab.h>
 #include <linux/ctype.h>
 #include <linux/kmod.h>
 #include <linux/err.h>
@@ -84,6 +85,7 @@ static int proc_handler_callhome(struct ctl_table *ctl, int write,
                 rc = copy_from_user(buf, buffer, sizeof(buf));
                 if (rc != 0)
                         return -EFAULT;
+                buf[sizeof(buf) - 1] = '\0';
                 if (strict_strtoul(buf, 0, &val) != 0)
                         return -EINVAL;
                 if (val != 0 && val != 1)
@@ -101,18 +103,17 @@ static struct ctl_table callhome_table[] = {
                 .mode           = 0644,
                 .proc_handler   = proc_handler_callhome,
         },
-        { .ctl_name = 0 }
+        {}
 };
 
 static struct ctl_table kern_dir_table[] = {
         {
-                .ctl_name       = CTL_KERN,
                 .procname       = "kernel",
                 .maxlen         = 0,
                 .mode           = 0555,
                 .child          = callhome_table,
         },
-        { .ctl_name = 0 }
+        {}
 };
 
 /*