pci_reset_bus() is being called from the probe context and causes
a deadlock since pci_reset_bus() also tries to obtain kernel lock.
Use __pci_reset_function_locked() that provides locking guarantees.
Fixes: 811c5cb37df4 ("PCI: Unify try slot and bus reset API")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=200985
Signed-off-by: Sinan Kaya <okaya@xxxxxxxxxx>
---
drivers/infiniband/hw/hfi1/pcie.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/hfi1/pcie.c b/drivers/infiniband/hw/hfi1/pcie.c
index eec83757d55f..13162289b748 100644
--- a/drivers/infiniband/hw/hfi1/pcie.c
+++ b/drivers/infiniband/hw/hfi1/pcie.c
@@ -900,7 +900,7 @@ static int trigger_sbr(struct hfi1_devdata *dd)
* delay after a reset is required. Per spec requirements,
* the link is either working or not after that point.
*/
- return pci_reset_bus(dev);
+ return __pci_reset_function_locked(dev, PCI_RESET_LINK);
}
/*
--
2.18.0
