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v0.5.1
https://github.com/torvalds/linux
02 December 2023, 22:23:51 UTC
Revision 1701f680407c6cc05121566cef5293d33881fe71 authored by Linus Torvalds on 25 March 2016, 16:02:13 UTC, committed by Linus Torvalds on 25 March 2016, 16:02:13 UTC 
Revert "ppdev: use new parport device model"
 
This reverts commit e7223f18603374d235d8bb0398532323e5f318b9.

It causes problems when a ppdev tries to register before the parport
driver has been registered with the device model. That will trigger the

        BUG_ON(!drv->bus->p);

at drivers/base/driver.c:153. The call chain is

  kernel_init ->
    kernel_init_freeable ->
      do_one_initcall ->
        ppdev_init ->
          __parport_register_driver ->
            driver_register *BOOM*

Reported-by: kernel test robot <fengguang.wu@intel.com>
Reported-by: Ross Zwisler <zwisler@gmail.com>
Reported-by: Petr Mladek <pmladek@suse.com>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 3b3b3bd
History
Tip revision: 1701f680407c6cc05121566cef5293d33881fe71 authored by Linus Torvalds on 25 March 2016, 16:02:13 UTC
Revert "ppdev: use new parport device model"
Tip revision: 1701f68
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