yaffs direct: Fix EROFS handling in some functions.
authorCharles Manning <cdhmanning@gmail.com>
Sun, 28 Nov 2010 22:44:49 +0000 (11:44 +1300)
committerCharles Manning <cdhmanning@gmail.com>
Sun, 28 Nov 2010 22:47:16 +0000 (11:47 +1300)
Signed-off-by: Charles Manning <cdhmanning@gmail.com>
direct/yaffsfs.c

index c7937b0..b6b5e44 100644 (file)
@@ -881,19 +881,23 @@ int yaffs_open(const YCHAR *path, int oflag, int mode)
 int yaffs_Dofsync(int fd,int datasync)
 {
        yaffsfs_Handle *h = NULL;
-       int retVal = 0;
+       int retVal = -1;
 
        yaffsfs_Lock();
 
        h = yaffsfs_GetHandlePointer(fd);
 
-       if(h && h->useCount > 0)
-               /* flush the file */
-               yaffs_flush_file(yaffsfs_inode[h->inodeId].iObj,1,datasync);
-       else {
-               /* bad handle */
+       if(!h || h->useCount < 1)
                yaffsfs_SetError(-EBADF);
-               retVal = -1;
+       else {
+               struct yaffs_obj * obj;
+               obj = yaffsfs_inode[h->inodeId].iObj;
+               if(obj->my_dev->read_only)
+                       yaffsfs_SetError(-EROFS);
+               else {          
+                       yaffs_flush_file(yaffsfs_inode[h->inodeId].iObj,1,datasync);
+                       retVal = 0;
+               }
        }
 
        yaffsfs_Unlock();
@@ -1191,6 +1195,8 @@ int yaffs_truncate(const YCHAR *path,off_t new_size)
                yaffsfs_SetError(-ELOOP);
        else if(!dir || !obj)
                yaffsfs_SetError(-ENOENT);
+       else if(obj->my_dev->read_only)
+               yaffsfs_SetError(-EROFS);
        else if(obj->variant_type != YAFFS_OBJECT_TYPE_FILE)
                yaffsfs_SetError(-EISDIR);
        else if(obj->my_dev->read_only)
@@ -1219,7 +1225,7 @@ int yaffs_ftruncate(int fd, off_t new_size)
                /* bad handle */
                yaffsfs_SetError(-EBADF);
        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
@@ -2194,15 +2200,17 @@ int yaffs_sync(const YCHAR *path)
         yaffsfs_Lock();
         dev = yaffsfs_FindDevice(path,&dummy);
         if(dev){
-                if(dev->is_mounted){
+                if(!dev->is_mounted)
+                       yaffsfs_SetError(-EINVAL);
+               else if(dev->read_only)
+                       yaffsfs_SetError(-EROFS);
+               else {
                         
                         yaffs_flush_whole_cache(dev);
                         yaffs_checkpoint_save(dev);
                         retVal = 0;
                         
-                } else
-                        yaffsfs_SetError(-EINVAL);
-                        
+                }      
         }else
                 yaffsfs_SetError(-ENODEV);