Kernel: Fix symlink deletion from tmpfs

Small symlinks store their target in inline storage of data block
indices. Freeing blocks did not account for this and tried to interpret
the link target as block inidices to delete

kernel/kernel/FS/TmpFS/Inode.cpp

@@ -123,6 +123,8 @@ namespace Kernel
 
 	void TmpInode::free_all_blocks()
 	{
+		if (mode().iflnk() && m_inode_info.size <= sizeof(TmpInodeInfo::block))
+			goto free_all_blocks_done;
 		for (size_t i = 0; i < TmpInodeInfo::direct_block_count; i++)
 			if (m_inode_info.block[i])
 				m_fs.free_block(m_inode_info.block[i]);
@@ -132,6 +134,7 @@ namespace Kernel
 			free_indirect_blocks(block, 2);
 		if (size_t block = m_inode_info.block[TmpInodeInfo::direct_block_count + 2])
 			free_indirect_blocks(block, 3);
+	free_all_blocks_done:
 		for (auto& block : m_inode_info.block)
 			block = 0;
 	}