diff options
| author | Chandrakanth Patil <chandrakanth.patil@broadcom.com> | 2026-07-24 23:22:31 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2026-07-28 22:05:42 -0400 |
| commit | ccff8c92571500fcfed21281e33daaf645bf692f (patch) | |
| tree | 5f760053cc771d9b388515a952f15ab357f9dad5 /include/linux/mfd | |
| parent | a8ddfd2425bbbafadae8700d63ed8a61a4109878 (diff) | |
scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit
mpi3mr_fault_uevent_emit() runs from the fault watchdog and reset paths
where host I/O may already be blocked. GFP_KERNEL allocations here, both
the local kzalloc_obj() and the ones inside kobject_uevent_env() itself,
can trigger reclaim that waits on that blocked I/O and deadlock.
Use memalloc_noio_save()/restore() to cover the whole call instead of
just the local allocation.
Fixes: ec54b348f274 ("scsi: mpi3mr: Record and report controller firmware faults")
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260724164630.924288-1-chandrakanth.patil%40broadcom.com
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Link: https://patch.msgid.link/20260724175231.935192-1-chandrakanth.patil@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/linux/mfd')
0 files changed, 0 insertions, 0 deletions