[PATCH] 9p: handle sget() failure

Handle a failing sget() in v9fs_get_sb().

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index b0a0ae5..61c599b 100644 (file)
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -127,12 +127,13 @@ static struct super_block *v9fs_get_sb(struct file_system_type
 
        if ((newfid = v9fs_session_init(v9ses, dev_name, data)) < 0) {
                dprintk(DEBUG_ERROR, "problem initiating session\n");
-               kfree(v9ses);
-               return ERR_PTR(newfid);
+               sb = ERR_PTR(newfid);
+               goto out_free_session;
        }
 
        sb = sget(fs_type, NULL, v9fs_set_super, v9ses);
-
+       if (IS_ERR(sb))
+               goto out_close_session;
        v9fs_fill_super(sb, v9ses, flags);
 
        inode = v9fs_get_inode(sb, S_IFDIR | mode);
@@ -185,6 +186,12 @@ static struct super_block *v9fs_get_sb(struct file_system_type
 
        return sb;
 
+out_close_session:
+       v9fs_session_close(v9ses);
+out_free_session:
+       kfree(v9ses);
+       return sb;
+
 put_back_sb:
        /* deactivate_super calls v9fs_kill_super which will frees the rest */
        up_write(&sb->s_umount);