linux-toradex.git/drivers/base/driver.c, branch v4.20-rc6

driver-core: return EINVAL error instead of BUG_ON()

2018-05-25T16:18:45+00:00

I triggerd the BUG_ON() in driver_register() when booting a domU Xen
domain. Since there was no contextual information logged, I needed to
attach kgdb to determine the culprit (the wmi-bmof driver in my
case). The BUG_ON() was added in commit f48f3febb2cb ("driver-core: do
not register a driver with bus_type not registered").

Instead of running into a BUG_ON() we print an error message
identifying the, likely faulty, driver but continue booting.

Signed-off-by: Florian Schmaus 
Signed-off-by: Greg Kroah-Hartman

drivers: base: omit redundant interations

2017-12-18T15:47:27+00:00

When error happens, these interators return the error, no interation should
be continued, so make the change for getting out of while immediately.

Signed-off-by: Gimcuan Hui 
Signed-off-by: Greg Kroah-Hartman

driver core: Remove redundant license text

2017-12-07T17:36:44+00:00

Now that the SPDX tag is in all driver core files, that identifies the
license in a specific and legally-defined manner.  So the extra GPL text
wording can be removed as it is no longer needed at all.

This is done on a quest to remove the 700+ different ways that files in
the kernel describe the GPL license text.  And there's unneeded stuff
like the address (sometimes incorrect) for the FSF which is never
needed.

No copyright headers or other non-license-description text was removed.

Cc: Johannes Berg 
Cc: "Luis R. Rodriguez" 
Signed-off-by: Greg Kroah-Hartman

driver core: add SPDX identifiers to all driver core files

2017-12-07T17:36:43+00:00

It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.

Update the driver core files files with the correct SPDX license
identifier based on the license text in the file itself.  The SPDX
identifier is a legally binding shorthand, which can be used instead of
the full boiler plate text.

This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.

Cc: Johannes Berg 
Cc: "Luis R. Rodriguez" 
Cc: William Breathitt Gray 
Cc: Thomas Gleixner 
Cc: Kate Stewart 
Cc: Philippe Ombredanne 
Signed-off-by: Greg Kroah-Hartman

driver core: add missing blank line after declaration

2015-03-25T13:36:30+00:00

Found using checkpatch.pl
Signed-off-by: Lavinia Tache 
Signed-off-by: Greg Kroah-Hartman

driver core: add #include to core files.

2013-08-27T17:24:15+00:00

This is needed to fix the build on sh systems.

Reported-by: kbuild test robot 
Signed-off-by: Greg Kroah-Hartman

sysfs: add sysfs_create/remove_groups()

2013-08-21T23:02:19+00:00

These functions are being open-coded in 3 different places in the driver
core, and other driver subsystems will want to start doing this as well,
so move it to the sysfs core to keep it all in one place, where we know
it is written properly.

Signed-off-by: Greg Kroah-Hartman

driver core: bus_type: add drv_groups

2013-08-12T22:33:31+00:00

attribute groups are much more flexible than just a list of attributes,
due to their support for visibility of the attributes, and binary
attributes. Add drv_groups to struct bus_type which should be used
instead of drv_attrs.

drv_attrs will be removed from the structure soon.

Signed-off-by: Greg Kroah-Hartman

driver core: don't trigger uevent after failure

2012-07-17T17:40:23+00:00

Do not send the uevent if driver_add_groups failed.

Reported-by: Ming Lei 
Signed-off-by: Sebastian Ott 
Signed-off-by: Greg Kroah-Hartman

driver core: move uevent call to driver_register

2012-07-17T01:04:25+00:00

Device driver attribute groups are created after userspace is notified
via an add event. Fix this by moving the kobject_uevent call to
driver_register after the attribute groups are added.

Signed-off-by: Sebastian Ott 
Signed-off-by: Greg Kroah-Hartman