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[SCSI] scsi_debug: Convert to use root_device_register() and root_device_unregister()

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This patch updates the scsi_debug virtual LLD to use
root_device_register() and root_device_unregister() from
include/linux/device.h instead of device_register() and
device_unregister() respectively within scsi_debug_init() and
scsi_debug_exit() This simply involved converting the static struct
device pseudo_primary into a pointer that is setup by the call to
root_device_register().

This patch also contains the correct IS_ERR() conditional check of
root_device_register() from within scsi_debug_init().

Thanks to Richard Sharpe and Dmitry Torokhov for their help with this
item.

Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Nicholas Bellinger 2010-09-06 17:24:28 -07:00 committed by James Bottomley
parent 78d16341fa
commit 9b90677956
1 changed files with 8 additions and 17 deletions
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25
drivers/scsi/scsi_debug.c
View File

@ -3226,16 +3226,7 @@ static void do_remove_driverfs_files(void)
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_add_host);
}
static void pseudo_0_release(struct device *dev)
{
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: pseudo_0_release() called\n");
}
static struct device pseudo_primary = {
.init_name = "pseudo_0",
.release = pseudo_0_release,
};
struct device *pseudo_primary;
static int __init scsi_debug_init(void)
{
@ -3382,10 +3373,10 @@ static int __init scsi_debug_init(void)
map_region(0, 2);
}
ret = device_register(&pseudo_primary);
if (ret < 0) {
printk(KERN_WARNING "scsi_debug: device_register error: %d\n",
ret);
pseudo_primary = root_device_register("pseudo_0");
if (IS_ERR(pseudo_primary)) {
printk(KERN_WARNING "scsi_debug: root_device_register() error\n");
ret = PTR_ERR(pseudo_primary);
goto free_vm;
}
ret = bus_register(&pseudo_lld_bus);
@ -3432,7 +3423,7 @@ static int __init scsi_debug_init(void)
bus_unreg:
bus_unregister(&pseudo_lld_bus);
dev_unreg:
device_unregister(&pseudo_primary);
root_device_unregister(pseudo_primary);
free_vm:
if (map_storep)
vfree(map_storep);
@ -3453,7 +3444,7 @@ static void __exit scsi_debug_exit(void)
do_remove_driverfs_files();
driver_unregister(&sdebug_driverfs_driver);
bus_unregister(&pseudo_lld_bus);
device_unregister(&pseudo_primary);
root_device_unregister(pseudo_primary);
if (dif_storep)
vfree(dif_storep);
@ -3504,7 +3495,7 @@ static int sdebug_add_adapter(void)
spin_unlock(&sdebug_host_list_lock);
sdbg_host->dev.bus = &pseudo_lld_bus;
sdbg_host->dev.parent = &pseudo_primary;
sdbg_host->dev.parent = pseudo_primary;
sdbg_host->dev.release = &sdebug_release_adapter;
dev_set_name(&sdbg_host->dev, "adapter%d", scsi_debug_add_host);