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scsi: use device_remove_file_self() instead of device_schedule_callback()

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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 "delete" behave
synchronously.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tejun Heo 2014-02-03 14:03:03 -05:00 committed by Greg Kroah-Hartman
parent bc6caf02cc
commit ac0ece9174
1 changed files with 2 additions and 13 deletions
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15
drivers/scsi/scsi_sysfs.c
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@ -649,23 +649,12 @@ store_rescan_field (struct device *dev, struct device_attribute *attr,
}
static DEVICE_ATTR(rescan, S_IWUSR, NULL, store_rescan_field);
static void sdev_store_delete_callback(struct device *dev)
{
scsi_remove_device(to_scsi_device(dev));
}
static ssize_t
sdev_store_delete(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int rc;
/* An attribute cannot be unregistered by one of its own methods,
* so we have to use this roundabout approach.
*/
rc = device_schedule_callback(dev, sdev_store_delete_callback);
if (rc)
count = rc;
if (device_remove_file_self(dev, attr))
scsi_remove_device(to_scsi_device(dev));
return count;
};
static DEVICE_ATTR(delete, S_IWUSR, NULL, sdev_store_delete);