ibmveth: h_free logical LAN on open-fail after register

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ibmveth_open() registers the logical LAN, then allocates the RX
buffer pools. A pool failure jumps to out_free_buffer_pools without
h_free_logical_lan(), so PHYP still owns the buffer-list page when
it is unmapped. request_irq() failure already issued the hypercall
before taking the same label.

Move that h_free to the shared post-register unwind so both paths
deregister before the buffer list is unmapped.

Fixes: d43732ce02 ("ibmveth: properly unwind on init errors")
Cc: stable@vger.kernel.org
Signed-off-by: Mingming Cao <mmc@linux.ibm.com>
Reviewed-by: Dave Marquardt <davemarq@linux.ibm.com>
Link: https://patch.msgid.link/7a56fbfb9e0674f011f4e310fbd7dfd8e67c30aa.1790357373.git.mmc@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Mingming Cao 2026-09-25 11:05:29 -07:00 • committed by Jakub Kicinski

parent d24e8ac715

commit af0524bf4c

1 changed files with 3 additions and 4 deletions

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drivers/net/ethernet/ibm/ibmveth.c

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