1 files changed, 3 insertions, 13 deletions

diff --git a/lib/parser.c b/lib/parser.c
index 3278958b472a..dd70e5e6c9e2 100644
--- a/lib/parser.c
+++ b/lib/parser.c
@@ -131,13 +131,10 @@ static int match_number(substring_t *s, int *result, int base)
         char *buf;
         int ret;
         long val;
-        size_t len = s->to - s->from;
 
-        buf = kmalloc(len + 1, GFP_KERNEL);
+        buf = match_strdup(s);
         if (!buf)
                 return -ENOMEM;
-        memcpy(buf, s->from, len);
-        buf[len] = '\0';
 
         ret = 0;
         val = simple_strtol(buf, &endp, base);
@@ -166,13 +163,10 @@ static int match_u64int(substring_t *s, u64 *result, int base)
         char *buf;
         int ret;
         u64 val;
-        size_t len = s->to - s->from;
 
-        buf = kmalloc(len + 1, GFP_KERNEL);
+        buf = match_strdup(s);
         if (!buf)
                 return -ENOMEM;
-        memcpy(buf, s->from, len);
-        buf[len] = '\0';
 
         ret = kstrtoull(buf, base, &val);
         if (!ret)
@@ -327,10 +321,6 @@ EXPORT_SYMBOL(match_strlcpy);
  */
 char *match_strdup(const substring_t *s)
 {
-        size_t sz = s->to - s->from + 1;
-        char *p = kmalloc(sz, GFP_KERNEL);
-        if (p)
-                match_strlcpy(p, s, sz);
-        return p;
+        return kmemdup_nul(s->from, s->to - s->from, GFP_KERNEL);
 }
 EXPORT_SYMBOL(match_strdup);