From: Charles Manning <cdhmanning@gmail.com>
Date: Mon, 29 Nov 2010 02:09:11 +0000 (+1300)
Subject: yaffs direct: Fix more error handling
X-Git-Tag: linux-mainline-patchset-4~29
X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=commitdiff_plain;h=26d3321e95784921c9fd24d80c9f738c57ef3aa1;ds=sidebyside

yaffs direct: Fix more error handling

Signed-off-by: Charles Manning <cdhmanning@gmail.com>
---

diff --git a/direct/yaffsfs.c b/direct/yaffsfs.c
index 577cb36..5194dd4 100644
--- a/direct/yaffsfs.c
+++ b/direct/yaffsfs.c
@@ -1210,7 +1210,7 @@ int yaffs_truncate(const YCHAR *path,off_t new_size)
 	else if(obj->variant_type != YAFFS_OBJECT_TYPE_FILE)
 		yaffsfs_SetError(-EISDIR);
 	else if(obj->my_dev->read_only)
-		yaffsfs_SetError(-EACCES);
+		yaffsfs_SetError(-EROFS);
 	else if(new_size < 0 || new_size > YAFFS_MAX_FILE_SIZE)
 		yaffsfs_SetError(-EINVAL);
 	else
@@ -1234,6 +1234,8 @@ int yaffs_ftruncate(int fd, off_t new_size)
 	if(!h || !obj)
 		/* bad handle */
 		yaffsfs_SetError(-EBADF);
+	else if(!h->writing)
+		yaffsfs_SetError(-EINVAL);
 	else if(obj->my_dev->read_only)
 		yaffsfs_SetError(-EROFS);
 	else if( new_size < 0 || new_size > YAFFS_MAX_FILE_SIZE)