net: ionic: free VF resources on remove

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ionic_probe() allocates VF tracking data and maps a statistics buffer
for each already enabled VF with ionic_vf_alloc().

The probe failure path releases these resources with
ionic_vf_dealloc(). However, after a successful probe, ionic_remove()
tears down the LIF and device without releasing the VF resources.

This leaves the VF tracking allocation and statistics DMA mappings
behind when the PF driver is removed.

Call ionic_vf_dealloc() before deinitializing the LIF so the VF
statistics addresses can be cleared and the associated DMA mappings
and tracking data released.

This issue was found by manual code inspection.

Cc: stable+noautosel@kernel.org # untested fix to a driver init path
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Link: https://patch.msgid.link/20260916053117.2906446-1-lgs201920130244@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Guangshuo Li 2026-09-16 13:31:17 +08:00 • committed by Jakub Kicinski

parent 8ecce29409

commit 9f1c440f92

1 changed files with 1 additions and 0 deletions

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drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c

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