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| author | Sudip Mukherjee <sudipm.mukherjee@gmail.com> | 2017-03-06 23:23:42 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-03-30 09:41:25 +0200 |
| commit | 0f29bcfdcf681b440695e3faa0d90f7ed226e327 (patch) | |
| tree | b8f5e04cfd7acb6112acc8058d07438b09eb9389 /fs | |
| parent | 1e6b5033501291bea037d98bea19f0eb03f2adef (diff) | |
parport: fix attempt to write duplicate procfiles
commit 03270c6ac6207fc55bbf9d20d195029dca210c79 upstream.
Usually every parallel port will have a single pardev registered with
it. But ppdev driver is an exception. This userspace parallel port
driver allows to create multiple parrallel port devices for a single
parallel port. And as a result we were having a nice warning like:
"sysctl table check failed:
/dev/parport/parport0/devices/ppdev0/timeslice Sysctl already exists"
Use the same logic as used in parport_register_device() and register
the proc files only once for each parallel port.
Fixes: 6fa45a226897 ("parport: add device-model to parport subsystem")
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1414656
Bugzilla: https://bugs.archlinux.org/task/52322
Tested-by: James Feeney <james@nurealm.net>
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions