affs: fix missing unlocks in affs_remove_link

In two error cases affs_remove_link doesn't call affs_unlock_dir to
release the i_hash_lock semaphore.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 6 insertions, 2 deletions

diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index 805573005de..7d0f0a30f7a 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -179,14 +179,18 @@ affs_remove_link(struct dentry *dentry)
                 affs_lock_dir(dir);
                 affs_fix_dcache(dentry, link_ino);
                 retval = affs_remove_hash(dir, link_bh);
-                if (retval)
+                if (retval) {
+                        affs_unlock_dir(dir);
                         goto done;
+                }
                 mark_buffer_dirty_inode(link_bh, inode);
 
                 memcpy(AFFS_TAIL(sb, bh)->name, AFFS_TAIL(sb, link_bh)->name, 32);
                 retval = affs_insert_hash(dir, bh);
-                if (retval)
+                if (retval) {
+                        affs_unlock_dir(dir);
                         goto done;
+                }
                 mark_buffer_dirty_inode(bh, inode);
 
                 affs_unlock_dir(dir);