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Commit ff3112f5 authored by Pierre Ossman's avatar Pierre Ossman
Browse files

mmc: set controller name early 



Reorganise code so that mmc_hostname() works directly after allocation.
That way host drivers can use that name for resource allocations and
messages during probing.

Signed-off-by: default avatarPierre Ossman <drzeus@drzeus.cx>
parent e675349e

drivers/mmc/core/host.c

+22 −17
Original line number Diff line number Diff line
@@ -2,7 +2,7 @@ 
 *  linux/drivers/mmc/core/host.c

 *

 *  Copyright (C) 2003 Russell King, All Rights Reserved.

 *  Copyright (C) 2007 Pierre Ossman

 *  Copyright (C) 2007-2008 Pierre Ossman

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as
@@ -57,12 +57,25 @@ static DEFINE_SPINLOCK(mmc_host_lock); 
 */

struct mmc_host *mmc_alloc_host(int extra, struct device *dev)

{

	int err;

	struct mmc_host *host;



	if (!idr_pre_get(&mmc_host_idr, GFP_KERNEL))

		return NULL;



	host = kzalloc(sizeof(struct mmc_host) + extra, GFP_KERNEL);

	if (!host)

		return NULL;



	spin_lock(&mmc_host_lock);

	err = idr_get_new(&mmc_host_idr, host, &host->index);

	spin_unlock(&mmc_host_lock);

	if (err)

		goto free;



	snprintf(host->class_dev.bus_id, BUS_ID_SIZE,

		 "mmc%d", host->index);



	host->parent = dev;

	host->class_dev.parent = dev;

	host->class_dev.class = &mmc_host_class;
@@ -85,6 +98,10 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev) 
	host->max_blk_count = PAGE_CACHE_SIZE / 512;



	return host;



free:

	kfree(host);

	return NULL;

}



EXPORT_SYMBOL(mmc_alloc_host);
@@ -104,18 +121,6 @@ int mmc_add_host(struct mmc_host *host) 
	WARN_ON((host->caps & MMC_CAP_SDIO_IRQ) &&

		!host->ops->enable_sdio_irq);



	if (!idr_pre_get(&mmc_host_idr, GFP_KERNEL))

		return -ENOMEM;



	spin_lock(&mmc_host_lock);

	err = idr_get_new(&mmc_host_idr, host, &host->index);

	spin_unlock(&mmc_host_lock);

	if (err)

		return err;



	snprintf(host->class_dev.bus_id, BUS_ID_SIZE,

		 "mmc%d", host->index);



	led_trigger_register_simple(host->class_dev.bus_id, &host->led);



	err = device_add(&host->class_dev);
@@ -144,10 +149,6 @@ void mmc_remove_host(struct mmc_host *host) 
	device_del(&host->class_dev);



	led_trigger_unregister_simple(host->led);



	spin_lock(&mmc_host_lock);

	idr_remove(&mmc_host_idr, host->index);

	spin_unlock(&mmc_host_lock);

}



EXPORT_SYMBOL(mmc_remove_host);
@@ -160,6 +161,10 @@ EXPORT_SYMBOL(mmc_remove_host); 
 */

void mmc_free_host(struct mmc_host *host)

{

	spin_lock(&mmc_host_lock);

	idr_remove(&mmc_host_idr, host->index);

	spin_unlock(&mmc_host_lock);



	put_device(&host->class_dev);

}