[PATCH 1/4] ramfs: free sb->s_fs_info after shutting down the super block

[Christoph Hellwig <hch@lst.de>]

sb->s_fs_info can only be safely freed after generic_shutdown_super was
called and all access to the super_block has stopped.

Thus only free the private data after calling kill_litter_super, which
calls generic_shutdown_super internally.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/ramfs/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c
index 18e8387cab4148..0f37ecbae59dad 100644
--- a/fs/ramfs/inode.c
+++ b/fs/ramfs/inode.c
@@ -280,8 +280,8 @@ int ramfs_init_fs_context(struct fs_context *fc)
 
 void ramfs_kill_sb(struct super_block *sb)
 {
-	kfree(sb->s_fs_info);
 	kill_litter_super(sb);
+	kfree(sb->s_fs_info);
 }
 
 static struct file_system_type ramfs_fs_type = {
-- 
2.39.2