From: Greg Kroah-Hartman <[email protected]>

From: Keith Busch <[email protected]>

[ Upstream commit 387c72cdd7fb6bef650fb078d0f6ae9682abf631 ]

Overwriting the frozen detected status with the result of the link reset
loses the NEED_RESET result that drivers are depending on for error
handling to report the .slot_reset() callback. Retain this status so
that subsequent error handling has the correct flow.

Link: https://lore.kernel.org/r/[email protected]
Reported-by: Hinko Kocevar <[email protected]>
Tested-by: Hedi Berriche <[email protected]>
Signed-off-by: Keith Busch <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Acked-by: Sean V Kelley <[email protected]>
Acked-by: Hedi Berriche <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
 drivers/pci/pcie/err.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c
index 510f31f0ef6d..4798bd6de97d 100644
--- a/drivers/pci/pcie/err.c
+++ b/drivers/pci/pcie/err.c
@@ -198,8 +198,7 @@ pci_ers_result_t pcie_do_recovery(struct pci_dev *dev,
        pci_dbg(bridge, "broadcast error_detected message\n");
        if (state == pci_channel_io_frozen) {
                pci_walk_bridge(bridge, report_frozen_detected, &status);
-               status = reset_subordinates(bridge);
-               if (status != PCI_ERS_RESULT_RECOVERED) {
+               if (reset_subordinates(bridge) != PCI_ERS_RESULT_RECOVERED) {
                        pci_warn(bridge, "subordinate device reset failed\n");
                        goto failed;
                }
-- 
2.30.1



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