[PATCH net v3 2/3] pds_core: don't release PCI regions for VFs on reset
From: Nikhil P. Rao <hidden>
Date: 2026-09-01 04:42:43
Subsystem:
amd pds core driver, networking drivers, the rest · Maintainers:
Brett Creeley, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
pdsc_reset_prepare() called pci_release_regions() unconditionally, but
only PFs call pci_request_regions() (pdsc_init_pf). On a VF FLR this
makes the kernel warn "Trying to free nonexistent resource".
Fixes: ffa55858330f ("pds_core: implement pci reset handlers")
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Closes: https://netdev-ai.bots.linux.dev/sashiko/#/patchset/20260804235946.177762-1-nikhil.rao%40amd.com
Assisted-by: Claude:claude-opus-4.8
Signed-off-by: Nikhil P. Rao <redacted>
---
drivers/net/ethernet/amd/pds_core/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/amd/pds_core/main.c b/drivers/net/ethernet/amd/pds_core/main.c
index 6e1079f9ba0f..a971c66d36f9 100644
--- a/drivers/net/ethernet/amd/pds_core/main.c
+++ b/drivers/net/ethernet/amd/pds_core/main.c@@ -517,8 +517,8 @@ static void pdsc_reset_prepare(struct pci_dev *pdev) mutex_lock(&pdsc->devcmd_lock); pdsc_unmap_bars(pdsc); mutex_unlock(&pdsc->devcmd_lock); + pci_release_regions(pdev); } - pci_release_regions(pdev); if (pci_is_enabled(pdev)) pci_disable_device(pdev); pdsc_deferred_dma_free(pdsc);
--
2.43.0