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authorAlan Stern <stern@rowland.harvard.edu>2012-01-24 13:34:41 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2012-01-24 16:00:35 -0800
commitcef9bc56e1e944afd11f96de569657117a138c6d (patch)
tree45923c4dec748e82a05313c9c7d443aa11e02a5f /drivers/pcmcia
parentfde25a9b63b9a3dc91365c394a426ebe64cfc2da (diff)
Dynamic ID addition doesn't need get_driver()
As part of the removal of get_driver()/put_driver(), this patch (as1511) changes all the places that add dynamic IDs for drivers. Since these additions are done by writing to the drivers' sysfs attribute files, and the attributes are removed when the drivers are unregistered, there is no reason to take an extra reference to the drivers. The one exception is the pci-stub driver, which calls pci_add_dynid() as part of its registration. But again, there's no reason to take an extra reference here, because the driver can't be unloaded while it is being registered. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Dmitry Torokhov <dmitry.torokhov@gmail.com> CC: Jiri Kosina <jkosina@suse.cz> CC: Jesse Barnes <jbarnes@virtuousgeek.org> CC: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pcmcia')
-rw-r--r--drivers/pcmcia/ds.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 749c2a16012..059699f6363 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -127,10 +127,7 @@ pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count)
list_add_tail(&dynid->node, &pdrv->dynids.list);
mutex_unlock(&pdrv->dynids.lock);
- if (get_driver(&pdrv->drv)) {
- retval = driver_attach(&pdrv->drv);
- put_driver(&pdrv->drv);
- }
+ retval = driver_attach(&pdrv->drv);
if (retval)
return retval;