static int msb_resume()

in core/ms_block.c [2244:2301]

• 46 lines of code
• 11 McCabe index (conditional complexity)

static int msb_resume(struct memstick_dev *card)
{
	struct msb_data *msb = memstick_get_drvdata(card);
	struct msb_data *new_msb = NULL;
	bool card_dead = true;

#ifndef CONFIG_MEMSTICK_UNSAFE_RESUME
	msb->card_dead = true;
	return 0;
#endif
	mutex_lock(&card->host->lock);

	new_msb = kzalloc(sizeof(struct msb_data), GFP_KERNEL);
	if (!new_msb)
		goto out;

	new_msb->card = card;
	memstick_set_drvdata(card, new_msb);
	spin_lock_init(&new_msb->q_lock);
	sg_init_table(msb->prealloc_sg, MS_BLOCK_MAX_SEGS+1);

	if (msb_init_card(card))
		goto out;

	if (msb->block_size != new_msb->block_size)
		goto out;

	if (memcmp(msb->boot_page, new_msb->boot_page,
					sizeof(struct ms_boot_page)))
		goto out;

	if (msb->logical_block_count != new_msb->logical_block_count ||
		memcmp(msb->lba_to_pba_table, new_msb->lba_to_pba_table,
						msb->logical_block_count))
		goto out;

	if (msb->block_count != new_msb->block_count ||
		memcmp(msb->used_blocks_bitmap, new_msb->used_blocks_bitmap,
							msb->block_count / 8))
		goto out;

	card_dead = false;
out:
	if (card_dead)
		dbg("Card was removed/replaced during suspend");

	msb->card_dead = card_dead;
	memstick_set_drvdata(card, msb);

	if (new_msb) {
		msb_data_clear(new_msb);
		kfree(new_msb);
	}

	msb_start(card);
	mutex_unlock(&card->host->lock);
	return 0;
}