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pci: use device_remove_file_self() instead of device_schedule_callback() 

driver-core now supports synchrnous self-deletion of attributes and
the asynchrnous removal mechanism is scheduled for removal.  Use it
instead of device_schedule_callback().  This makes "remove" behave
synchronously.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tejun Heo 2014-02-03 14:03:02 -05:00 committed by Greg Kroah-Hartman
parent 6b0afc2a21
commit bc6caf02cc
1 changed files with 3 additions and 14 deletions
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17
drivers/pci/pci-sysfs.c
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@ -351,28 +351,17 @@ static struct device_attribute dev_rescan_attr = __ATTR(rescan,
(S_IWUSR|S_IWGRP),
NULL, dev_rescan_store);
static void remove_callback(struct device *dev)
{
pci_stop_and_remove_bus_device_locked(to_pci_dev(dev));
}
static ssize_t
remove_store(struct device *dev, struct device_attribute *dummy,
remove_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int ret = 0;
unsigned long val;
if (kstrtoul(buf, 0, &val) < 0)
return -EINVAL;
/* An attribute cannot be unregistered by one of its own methods,
* so we have to use this roundabout approach.
*/
if (val)
ret = device_schedule_callback(dev, remove_callback);
if (ret)
count = ret;
if (val && device_remove_file_self(dev, attr))
pci_stop_and_remove_bus_device_locked(to_pci_dev(dev));
return count;
}
static struct device_attribute dev_remove_attr = __ATTR(remove,