| commit | 8497d6a21c4b17052e868bd53a74c82b557a6c46 | |
| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | |
| Tue, 12 Apr 2011 17:05:37 +0000 (12 19:05 +0200) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Sat, 23 Apr 2011 00:06:29 +0000 (22 17:06 -0700) | ||
| tree | f20b4098f8811a0dc7790a26150c969e5ae2ae80 | treesnapshot (tar.gz zip) |
| parent | fc2711992b8601c20b7cc078f533e55c3106fbd4 | commitdiff |
driver-core: fix race between device_register and driver_register
When a device is registered to a bus it will be a) added to the list
of devices of the bus and b) bind to a driver (if one matches). As a
result of a driver being registered at this bus between a) and b) this
device could already be bound to a driver. This leads to a warning
and incorrect refcounting.
To fix this add a check to device_attach to identify an already bound
device.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
When a device is registered to a bus it will be a) added to the list
of devices of the bus and b) bind to a driver (if one matches). As a
result of a driver being registered at this bus between a) and b) this
device could already be bound to a driver. This leads to a warning
and incorrect refcounting.
To fix this add a check to device_attach to identify an already bound
device.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/base/dd.c | diffblobblamehistory |