From: Edward Shishkin <edward.shishkin@gmail.com>
Date: Fri, 29 Oct 2010 22:11:50 +0000 (+0200)
Subject: ecryptfs: fix truncation error in ecryptfs_read_update_atime
X-Git-Tag: v3.0~2045^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=38a708d7759476318d0eec64af174513032ec67a;p=platform%2Fkernel%2Flinux-amlogic.git

ecryptfs: fix truncation error in ecryptfs_read_update_atime

This is similar to the bug found in direct-io not so long ago.

Fix up truncation (ssize_t->int).  This only matters with >2G
reads/writes, which the kernel doesn't permit.

Signed-off-by: Edward Shishkin <edward.shishkin@gmail.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Eric Sandeen <esandeen@redhat.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
---

diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 91da029..679817e 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -47,7 +47,7 @@ static ssize_t ecryptfs_read_update_atime(struct kiocb *iocb,
 				const struct iovec *iov,
 				unsigned long nr_segs, loff_t pos)
 {
-	int rc;
+	ssize_t rc;
 	struct dentry *lower_dentry;
 	struct vfsmount *lower_vfsmount;
 	struct file *file = iocb->ki_filp;