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| author | Ming Lei <ming.lei@canonical.com> | 2012-11-19 23:35:17 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-17 13:02:11 -0800 |
| commit | 190888ac01d059e38ffe77a2291d44cafa9016fb (patch) | |
| tree | 600544c901338319afc04edde2aba8813a5564db /drivers/base/bus.c | |
| parent | 1884bd4b1461d16d10ab4ab4d19725b4e0717f7a (diff) | |
| download | blackbird-op-linux-190888ac01d059e38ffe77a2291d44cafa9016fb.tar.gz blackbird-op-linux-190888ac01d059e38ffe77a2291d44cafa9016fb.zip | |
driver core: fix possible missing of device probe
Inside bus_add_driver(), one device might be added(device_add()) into
the bus or probed which is triggered by deferred probe
just after completing of driver_attach() and before
'klist_add_tail(&priv->knode_bus, &bus->p->klist_drivers)',
so the device won't be probed by this driver.
This patch moves the below line
'klist_add_tail(&priv->knode_bus, &bus->p->klist_drivers)'
before driver_attach() inside bus_add_driver() to fix the
problem.
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/bus.c')
| -rw-r--r-- | drivers/base/bus.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 24eb07868344..f9d31320bd37 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -700,12 +700,12 @@ int bus_add_driver(struct device_driver *drv) if (error) goto out_unregister; + klist_add_tail(&priv->knode_bus, &bus->p->klist_drivers); if (drv->bus->p->drivers_autoprobe) { error = driver_attach(drv); if (error) goto out_unregister; } - klist_add_tail(&priv->knode_bus, &bus->p->klist_drivers); module_add_driver(drv->owner, drv); error = driver_create_file(drv, &driver_attr_uevent); |
