From e0ab7af9bd1c25e40b9a1dbeb2a634b88267b9d7 Mon Sep 17 00:00:00 2001 From: George Spelvin Date: Sun, 29 May 2016 08:05:56 -0400 Subject: [PATCH] hash_string: Fix zero-length case for !DCACHE_WORD_ACCESS The self-test was updated to cover zero-length strings; the function needs to be updated, too. Reported-by: Geert Uytterhoeven Signed-off-by: George Spelvin Fixes: fcfd2fbf22d2 ("fs/namei.c: Add hashlen_string() function") Signed-off-by: Linus Torvalds --- fs/namei.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 47edc9981298..4c4f95ac8aa5 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1968,11 +1968,11 @@ u64 hashlen_string(const char *name) unsigned long len = 0, c; c = (unsigned char)*name; - do { + while (c) { len++; hash = partial_name_hash(c, hash); c = (unsigned char)name[len]; - } while (c); + } return hashlen_create(end_name_hash(hash), len); } EXPORT_SYMBOL(hashlen_string); -- 2.20.1