android_kernel_samsung_univ.../drivers/parport
Sudip Mukherjee c7d1545c48 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: 6fa45a2268 ("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>
2017-03-30 09:35:17 +02:00
..
BUGS-parport
daisy.c
ieee1284_ops.c
ieee1284.c
Kconfig
Makefile
multiface.h
parport_amiga.c
parport_atari.c parport: parport_atari: Remove obsolete IRQ_TYPE_SLOW 2015-01-15 13:44:50 +01:00
parport_ax88796.c
parport_cs.c
parport_gsc.c
parport_gsc.h
parport_ip32.c
parport_mfc3.c
parport_pc.c parport: add device-model to parport subsystem 2015-06-01 07:08:18 +09:00
parport_serial.c
parport_sunbpp.c
probe.c
procfs.c parport: add device-model to parport subsystem 2015-06-01 07:08:18 +09:00
share.c parport: fix attempt to write duplicate procfiles 2017-03-30 09:35:17 +02:00
TODO-parport