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char: tile-srom: Add real platform bus parent 

Add a real platform bus device as a parent for
the srom class devices, to prevent non-platform
devices hanging from the bus root.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
This commit is contained in:
Pawel Moll 2014-08-08 16:32:58 +01:00 committed by Chris Metcalf
parent 4cde4cc87a
commit 514b82a52b
1 changed files with 12 additions and 1 deletions
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13
drivers/char/tile-srom.c
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@ -76,6 +76,7 @@ MODULE_LICENSE("GPL");
static int srom_devs; /* Number of SROM partitions */
static struct cdev srom_cdev;
static struct platform_device *srom_parent;
static struct class *srom_class;
static struct srom_dev *srom_devices;
@ -350,7 +351,7 @@ static int srom_setup_minor(struct srom_dev *srom, int index)
SROM_PAGE_SIZE_OFF, sizeof(srom->page_size)) < 0)
return -EIO;
dev = device_create(srom_class, &platform_bus,
dev = device_create(srom_class, &srom_parent->dev,
MKDEV(srom_major, index), srom, "%d", index);
return PTR_ERR_OR_ZERO(dev);
}
@ -415,6 +416,13 @@ static int srom_init(void)
if (result < 0)
goto fail_chrdev;
/* Create a parent device */
srom_parent = platform_device_register_simple("srom", -1, NULL, 0);
if (IS_ERR(srom_parent)) {
result = PTR_ERR(srom_parent);
goto fail_pdev;
}
/* Create a sysfs class. */
srom_class = class_create(THIS_MODULE, "srom");
if (IS_ERR(srom_class)) {
@ -438,6 +446,8 @@ fail_class:
device_destroy(srom_class, MKDEV(srom_major, i));
class_destroy(srom_class);
fail_cdev:
platform_device_unregister(srom_parent);
fail_pdev:
cdev_del(&srom_cdev);
fail_chrdev:
unregister_chrdev_region(dev, srom_devs);
@ -454,6 +464,7 @@ static void srom_cleanup(void)
device_destroy(srom_class, MKDEV(srom_major, i));
class_destroy(srom_class);
cdev_del(&srom_cdev);
platform_device_unregister(srom_parent);
unregister_chrdev_region(MKDEV(srom_major, 0), srom_devs);
kfree(srom_devices);
}