Fix -ENOSPC to work properly with zero length writes

diff --git a/yaffs_fs.c b/yaffs_fs.c
index 7c04ed3a3de175076f27be67fdb3d995a617cda6..ed247f9e9307a5afbf58e68853519987b4cdd434 100644 (file)
--- a/yaffs_fs.c
+++ b/yaffs_fs.c
@@ -32,7 +32,7 @@
  */
 
 const char *yaffs_fs_c_version =
  */
 
 const char *yaffs_fs_c_version =

-    "$Id: yaffs_fs.c,v 1.79 2009-03-17 01:12:00 wookey Exp $";
+    "$Id: yaffs_fs.c,v 1.80 2009-05-12 02:23:51 charles Exp $";

 extern const char *yaffs_guts_c_version;
 
 #include <linux/version.h>
 extern const char *yaffs_guts_c_version;
 
 #include <linux/version.h>


@@ -1075,7 +1075,7 @@ static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
 
        }
        yaffs_GrossUnlock(dev);
 
        }
        yaffs_GrossUnlock(dev);

-       return nWritten == 0 ? -ENOSPC : nWritten;
+       return (nWritten == 0) && (n > 0) ? -ENOSPC : nWritten;

 }
 
 /* Space holding and freeing is done to ensure we have space available for write_begin/end */
 }
 
 /* Space holding and freeing is done to ensure we have space available for write_begin/end */