commit d7760d638b140d53c6390a2fbee9b06460b43e9e
author Ilya Dryomov <idryomov@gmail.com> Wed May 02 20:16:57 2018 +0200
committer Al Viro <viro@zeniv.linux.org.uk> Wed May 02 15:43:19 2018 -0400
tree f269e6fc2b544ad0e181211663f35811f2e4c2a6
parent e76b6312391bdd62e31dc86cb65e478b07b7909e

iov_iter: fix memory leak in pipe_get_pages_alloc()

Make n signed to avoid leaking the pages array if __pipe_get_pages()
fails to allocate any pages.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

lib/iov_iter.c

diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index 4d5bf40..fdae394 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -1102,7 +1102,7 @@ static ssize_t pipe_get_pages_alloc(struct iov_iter *i,
 		   size_t *start)
 {
 	struct page **p;
-	size_t n;
+	ssize_t n;
 	int idx;
 	int npages;