From: Charles Manning <cdhmanning@gmail.com>
Date: Wed, 17 Nov 2010 03:19:51 +0000 (+1300)
Subject: yaffs direct: Modify lseek value checking
X-Git-Tag: linux-mainline-patchset-4~72
X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=commitdiff_plain;h=7b53d290e92e619a315399ba49aadf6b40e13660

yaffs direct: Modify lseek value checking

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

diff --git a/direct/yaffsfs.c b/direct/yaffsfs.c
index a970577..f32808d 100644
--- a/direct/yaffsfs.c
+++ b/direct/yaffsfs.c
@@ -1192,10 +1192,12 @@ off_t yaffs_lseek(int fd, off_t offset, int whence)
 				pos = fSize + offset;
 		} 
 
-		if(pos >= 0)
+		if(pos >= 0 && pos <= YAFFS_MAX_FILE_SIZE)
 			h->position = pos;
-		else
+		else{
 			yaffsfs_SetError(-EINVAL);
+			pos = -1;
+		}
 	}
 
 	yaffsfs_Unlock();