From: Eric Biggers <ebiggers@xxxxxxxxxx> Subject: lib/parser.c: switch match_u64int() over to use match_strdup() This simplifies the code. No change in behavior. Link: http://lkml.kernel.org/r/20180830194814.192880-1-ebiggers@xxxxxxxxxx Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- lib/parser.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) --- a/lib/parser.c~lib-parserc-switch-match_u64int-over-to-use-match_strdup +++ a/lib/parser.c @@ -166,13 +166,10 @@ static int match_u64int(substring_t *s, 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) _