1 files changed, 2 insertions, 1 deletions

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index f93502915988..3df8eb17a607 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -25,6 +25,7 @@
 #include <linux/uaccess.h>
 #include <linux/dynamic_debug.h>
 #include <linux/debugfs.h>
+#include <linux/slab.h>
 
 extern struct _ddebug __start___verbose[];
 extern struct _ddebug __stop___verbose[];
@@ -455,7 +456,7 @@ static ssize_t ddebug_proc_write(struct file *file, const char __user *ubuf,
                         __func__, (int)len);
 
         nwords = ddebug_tokenize(tmpbuf, words, MAXWORDS);
-        if (nwords < 0)
+        if (nwords <= 0)
                 return -EINVAL;
         if (ddebug_parse_query(words, nwords-1, &query))
                 return -EINVAL;