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PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup

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Disable the delayed work before clearing BAR mappings and doorbells to
avoid running the handler after resources have been torn down.

  Unable to handle kernel paging request at virtual address ffff800083f46004
  [...]
  Internal error: Oops: 0000000096000007 [#1]  SMP
  [...]
  Call trace:
   epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P)
   process_one_work+0x154/0x3b0
   worker_thread+0x2c8/0x400
   kthread+0x148/0x210
   ret_from_fork+0x10/0x20

Fixes: e35f56bb03 ("PCI: endpoint: Support NTB transfer between RC and EP")
Signed-off-by: Koichiro Den <den@valinux.co.jp>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260226084142.2226875-4-den@valinux.co.jp
This commit is contained in:
Koichiro Den 2026-02-26 17:41:40 +09:00 committed by Manivannan Sadhasivam
parent 3446beddba
commit d799984233
1 changed files with 1 additions and 0 deletions
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1
drivers/pci/endpoint/functions/pci-epf-vntb.c
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@ -942,6 +942,7 @@ static int epf_ntb_epc_init(struct epf_ntb *ntb)
*/
static void epf_ntb_epc_cleanup(struct epf_ntb *ntb)
{
disable_delayed_work_sync(&ntb->cmd_handler);
epf_ntb_mw_bar_clear(ntb, ntb->num_mws);
epf_ntb_db_bar_clear(ntb);
epf_ntb_config_sspad_bar_clear(ntb);