Enhance ACPI reset drvier to use hotplug-safe iterators to walk PCI buses.
Signed-off-by: Jiang Liu <jiang....@huawei.com>
Acked-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
Cc: Len Brown <l...@kernel.org>
Cc: linux-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/acpi/reboot.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c
index a6c77e8b..532dd6d 100644
--- a/drivers/acpi/reboot.c
+++ b/drivers/acpi/reboot.c
@@ -33,7 +33,7 @@ void acpi_reboot(void)
switch (rr->space_id) {
case ACPI_ADR_SPACE_PCI_CONFIG:
/* The reset register can only live on bus 0. */
- bus0 = pci_find_bus(0, 0);
+ bus0 = pci_get_bus(0, 0);
if (!bus0)
return;
/* Form PCI device/function pair. */
@@ -43,6 +43,7 @@ void acpi_reboot(void)
/* Write the value that resets us. */
pci_bus_write_config_byte(bus0, devfn,
(rr->address & 0xffff), reset_value);
+ pci_bus_put(bus0);
break;
case ACPI_ADR_SPACE_SYSTEM_MEMORY:
--
1.8.1.2
--
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