From: tpoynor <tpoynor>
Date: Wed, 25 Jan 2006 01:21:08 +0000 (+0000)
Subject: Handle partial writes more gracefully: return partial byte counts, return
X-Git-Tag: pre-name-change~374
X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=commitdiff_plain;h=9ba290174077217e612c4c71dfc23666e143af84

Handle partial writes more gracefully: return partial byte counts, return
ENOSPC only if no partial count or error code available.  Based on fix
from Mikhail Ryleev.
---

diff --git a/yaffs_fs.c b/yaffs_fs.c
index 3ded1fe..cc4f68a 100644
--- a/yaffs_fs.c
+++ b/yaffs_fs.c
@@ -31,7 +31,7 @@
  */
 
 const char *yaffs_fs_c_version =
-    "$Id: yaffs_fs.c,v 1.39 2006-01-24 22:22:52 tpoynor Exp $";
+    "$Id: yaffs_fs.c,v 1.40 2006-01-25 01:21:08 tpoynor Exp $";
 extern const char *yaffs_guts_c_version;
 
 #include <linux/config.h>
@@ -628,9 +628,9 @@ static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
 
 	T(YAFFS_TRACE_OS,
 	  (KERN_DEBUG "yaffs_commit_write returning %d\n",
-	   nWritten == nBytes ? 0 : -1));
+	   nWritten == nBytes ? 0 : nWritten));
 
-	return nWritten == nBytes ? 0 : -1;
+	return nWritten == nBytes ? 0 : nWritten;
 
 }
 
@@ -788,8 +788,7 @@ static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
 
 	}
 	yaffs_GrossUnlock(dev);
-
-	return nWritten != n ? -ENOSPC : nWritten;
+	return nWritten == 0 ? -ENOSPC : nWritten;
 }
 
 static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir)