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2f7484fd73
linux/drivers/s390/cio
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Vineeth Vijayan 2f7484fd73 s390/cio: remove invalid condition on IO_SCH_UNREG 
The condition to check the cdev pointer validity on
css_sch_device_unregister() is a leftover from the 'commit 8cc0dcfdc1
("s390/cio: remove pm support from ccw bus driver")'. This could lead to a
situation, where detaching the device is not happening completely. Remove
this invalid condition in the IO_SCH_UNREG case.

Link: https://lore.kernel.org/r/20210423100843.2230969-1-vneethv@linux.ibm.com
Fixes: 8cc0dcfdc1 ("s390/cio: remove pm support from ccw bus driver")
Reported-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Suggested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Tested-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2021-04-30 17:17:01 +02:00
..
airq.c s390/irq: replace setup_irq() by request_irq() 2020-03-11 14:18:44 +01:00
blacklist.c s390/cio: cio_ignore_proc_seq_next should increase position index 2020-02-17 18:01:57 +01:00
blacklist.h
ccwgroup.c s390/ccwgroup: use bus->dev_groups for bus-based sysfs attributes 2020-12-07 06:55:21 -08:00
ccwreq.c s390/cio: add basic protected virtualization support 2019-06-15 12:25:00 +02:00
chp.c s390/cio: use DECLARE_WAIT_QUEUE_HEAD for static work_queue_head_t 2021-04-12 12:46:41 +02:00
chp.h s390/cio: Add support for FCES status notification 2020-11-16 08:14:38 -07:00
chsc_sch.c s390/cio: remove pm support from chsc subchannel driver 2020-12-02 18:19:25 +01:00
chsc_sch.h
chsc.c s390/cio: Add support for FCES status notification 2020-11-16 08:14:38 -07:00
chsc.h s390/cio: Export information about Endpoint-Security Capability 2020-11-16 08:14:37 -07:00
cio_debug.h s390/cio: introduce CIO debugfs directory 2021-03-22 11:36:04 +01:00
cio_debugfs.c s390/cio: introduce CIO debugfs directory 2021-03-22 11:36:04 +01:00
cio_inject.c s390/cio: add CRW inject functionality 2021-03-22 11:36:04 +01:00
cio_inject.h s390/cio: add CRW inject functionality 2021-03-22 11:36:04 +01:00
cio.c s390/irq: replace setup_irq() by request_irq() 2020-03-11 14:18:44 +01:00
cio.h s390/cio: fix virtio-ccw DMA without PV 2019-10-10 10:49:46 +02:00
cmf.c s390/cio: remove pm support from ccw bus driver 2020-12-02 18:19:25 +01:00
crw.c
css.c s390/cio: use DECLARE_WAIT_QUEUE_HEAD() for wait_queue 2021-04-05 11:30:57 +02:00
css.h s390/cio: remove pm support from css-bus driver 2020-12-02 18:19:25 +01:00
device_fsm.c s390/time,idle: get rid of unsigned long long 2021-03-08 10:46:27 +01:00
device_id.c s390/cio: add basic protected virtualization support 2019-06-15 12:25:00 +02:00
device_ops.c s390/cio: Helper functions to read CSSID, IID, and CHID 2020-09-15 13:21:46 -07:00
device_pgid.c s390/cio: add basic protected virtualization support 2019-06-15 12:25:00 +02:00
device_status.c s390/cio: add basic protected virtualization support 2019-06-15 12:25:00 +02:00
device.c s390/cio: remove invalid condition on IO_SCH_UNREG 2021-04-30 17:17:01 +02:00
device.h s390/cio: remove pm support from ccw bus driver 2020-12-02 18:19:25 +01:00
eadm_sch.c s390/cio: remove pm support from eadm-sch drivers 2020-12-02 18:19:24 +01:00
eadm_sch.h
fcx.c
idset.c s390/cio: Remove unused inline function idset_sch_get_first 2020-05-20 10:22:49 +02:00
idset.h
io_sch.h s390/cio: remove pm support from ccw bus driver 2020-12-02 18:19:25 +01:00
ioasm.c s390/cio: add CRW inject functionality 2021-03-22 11:36:04 +01:00
ioasm.h
isc.c
itcw.c
Makefile s390/cio: add CRW inject functionality 2021-03-22 11:36:04 +01:00
orb.h
qdio_debug.c s390/qdio: inline qdio_kick_handler() 2021-02-13 17:17:55 +01:00
qdio_debug.h s390/qdio: cleanly split alloc and establish 2020-04-06 13:13:50 +02:00
qdio_main.c s390/qdio: let driver manage the QAOB 2021-03-22 11:36:05 +01:00
qdio_setup.c s390/qdio: let driver manage the QAOB 2021-03-22 11:36:05 +01:00
qdio_thinint.c s390/qdio: track time of last data IRQ for each device 2021-02-09 15:57:04 +01:00
qdio.h s390/qdio: let driver manage the QAOB 2021-03-22 11:36:05 +01:00
scm.c bus_find_device: Unify the match callback with class_find_device 2019-06-24 05:22:31 +02:00
trace.c s390/cio: Remove tracing for rchp instruction 2019-05-08 15:01:22 +02:00
trace.h s390/cio: Remove tracing for rchp instruction 2019-05-08 15:01:22 +02:00
vfio_ccw_async.c vfio-ccw: make vfio_ccw_async_region_ops static 2019-07-29 18:05:03 +02:00
vfio_ccw_chp.c vfio-ccw: Fix a build error due to missing include of linux/slab.h 2020-07-03 11:41:31 +02:00
vfio_ccw_cp.c vfio-ccw: Enable transparent CCW IPL from DASD 2020-06-02 13:14:08 +02:00
vfio_ccw_cp.h vfio-ccw: Refactor how the traces are built 2019-10-17 11:35:56 +02:00
vfio_ccw_drv.c vfio-ccw: Add trace for CRW event 2020-06-03 11:28:19 +02:00
vfio_ccw_fsm.c vfio-ccw: Rework the io_fctl trace 2019-10-17 11:37:24 +02:00
vfio_ccw_ops.c s390/cio: return -EFAULT if copy_to_user() fails 2021-03-08 10:46:30 +01:00
vfio_ccw_private.h vfio-ccw: Wire in the request callback 2020-12-03 16:21:08 -07:00
vfio_ccw_trace.c vfio-ccw: Add trace for CRW event 2020-06-03 11:28:19 +02:00
vfio_ccw_trace.h vfio-ccw: Add trace for CRW event 2020-06-03 11:28:19 +02:00