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Vineeth Vijayan 6e7f06895d s390/cio: Update purge function to unregister the unused subchannels ... commit 9daa5a8795 upstream. Starting with 'commit 2297791c92 ("s390/cio: dont unregister subchannel from child-drivers")', cio no longer unregisters subchannels when the attached device is invalid or unavailable. As an unintended side-effect, the cio_ignore purge function no longer removes subchannels for devices on the cio_ignore list if no CCW device is attached. This situation occurs when a CCW device is non-operational or unavailable To ensure the same outcome of the purge function as when the current cio_ignore list had been active during boot, update the purge function to remove I/O subchannels without working CCW devices if the associated device number is found on the cio_ignore list. Fixes: 2297791c92 ("s390/cio: dont unregister subchannel from child-drivers") Suggested-by: Peter Oberparleiter <oberpar@linux.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2025-10-29 14:03:13 +01:00
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block	s390/dasd: fix error recovery leading to data corruption on ESE devices	2024-09-04 13:23:15 +02:00
char	s390/tty: Fix a potential memory leak bug	2025-05-02 07:44:34 +02:00
cio	s390/cio: Update purge function to unregister the unused subchannels	2025-10-29 14:03:13 +01:00
crypto	s390/pkey: Prevent overflow in size calculation for memdup_user()	2025-07-10 15:57:37 +02:00
net	s390/qeth: Fix kernel panic after setting hsuid	2024-05-17 11:50:51 +02:00
scsi	scsi: s390: zfcp: Ensure synchronous unit_add	2025-06-27 11:05:34 +01:00
virtio	virtio/s390: get rid of open-coded kvm hypercall	2021-06-28 11:18:28 +02:00
Makefile	s390: remove pointless drivers-y in drivers/s390/Makefile	2019-09-16 13:21:51 +02:00