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@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/lib/parser.c b/lib/parser.c
index 0142ef2..618c36e 100644
--- a/lib/parser.c
+++ b/lib/parser.c
@@ -166,13 +166,10 @@ 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)