direct-io: always call ->end_io if non-NULL

[linux-2.6-block.git] / fs / ext4 / inode.c

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 83bc8bfb3bea8eeefed38ca46ae8260779222405..9db04dd9b88a6e45782485ccf28844804294b103 100644 (file)
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3161,14 +3161,17 @@ out:
 }
 #endif
 
-static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
+static int ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
                            ssize_t size, void *private)
 {
         ext4_io_end_t *io_end = iocb->private;
 
+       if (size <= 0)
+               return 0;
+
        /* if not async direct IO just return */
        if (!io_end)
-               return;
+               return 0;
 
        ext_debug("ext4_end_io_dio(): io_end 0x%p "
                  "for inode %lu, iocb 0x%p, offset %llu, size %zd\n",
@@ -3179,6 +3182,8 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
        io_end->offset = offset;
        io_end->size = size;
        ext4_put_io_end(io_end);
+
+       return 0;
 }
 
 /*