misc/ibmasm/ibmasmfs.c

233 	struct ibmasmfs_command_data *command_data;
238 	command_data = kmalloc(sizeof(struct ibmasmfs_command_data), GFP_KERNEL);
239 	if (!command_data)
242 	command_data->command = NULL;
243 	command_data->sp = inode->i_private;
244 	file->private_data = command_data;
250 	struct ibmasmfs_command_data *command_data = file->private_data;
252 	if (command_data->command)
253 		command_put(command_data->command);
255 	kfree(command_data);
261 	struct ibmasmfs_command_data *command_data = file->private_data;
273 	spin_lock_irqsave(&command_data->sp->lock, flags);
274 	cmd = command_data->command;
276 		spin_unlock_irqrestore(&command_data->sp->lock, flags);
279 	command_data->command = NULL;
280 	spin_unlock_irqrestore(&command_data->sp->lock, flags);
298 	struct ibmasmfs_command_data *command_data = file->private_data;
310 	if (command_data->command)
313 	cmd = ibmasm_new_command(command_data->sp, count);
322 	spin_lock_irqsave(&command_data->sp->lock, flags);
323 	if (command_data->command) {
324 		spin_unlock_irqrestore(&command_data->sp->lock, flags);
328 	command_data->command = cmd;
329 	spin_unlock_irqrestore(&command_data->sp->lock, flags);
331 	ibmasm_exec_command(command_data->sp, cmd);