RDMA/hfi1: Preserve unit 0 on allocation failure

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hfi1_free_devdata() assumes that the device was inserted into the unit
table and unconditionally erases dd->unit. If xa_alloc_irq() fails, the
zero-initialized unit remains zero, so full cleanup can remove an
unrelated device from index 0.

Release only the rdmavt allocation and return immediately while the unit
table has not acquired the device.

Fixes: 03b92789e5 ("hfi1: Convert hfi1_unit_table to XArray")
Link: https://patch.msgid.link/20260708-clean-init-one-hfi1-v1-2-b9e9641268a5@nvidia.com
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>

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Leon Romanovsky 2026-07-13 07:41:23 -04:00

parent 2982eaf3b9

commit 2e3809ad89

1 changed files with 3 additions and 2 deletions

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5

drivers/infiniband/hw/hfi1/init.c

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