From 9d577b6a31a53a19d3b0fe414d645a61ef201846 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 10 May 2007 22:22:19 -0700 Subject: [PATCH] AFS: fix interminable loop in afs_write_back_from_locked_page() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Following bug was uncovered by compiling with '-W' flag: CC [M] fs/afs/write.o fs/afs/write.c: In function ‘afs_write_back_from_locked_page’: fs/afs/write.c:398: warning: comparison of unsigned expression >= 0 is always true Loop variable 'n' is unsigned, so wraps around happily as far as I can see. Trival fix attached (compile tested only). Signed-off-by: Mika Kukkonen Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/afs/write.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/afs/write.c b/fs/afs/write.c index 67ae4dbf66..28f37516c1 100644 --- a/fs/afs/write.c +++ b/fs/afs/write.c @@ -395,8 +395,9 @@ static int afs_write_back_from_locked_page(struct afs_writeback *wb, if (n == 0) goto no_more; if (pages[0]->index != start) { - for (n--; n >= 0; n--) - put_page(pages[n]); + do { + put_page(pages[--n]); + } while (n > 0); goto no_more; } -- 2.39.5