From: Jamie Iles quic_jiles@quicinc.com
[ Upstream commit 6558b646ce1c2a872fe1c2c7cb116f05a2c1950f ]
acpi_i2c_find_adapter_by_handle() calls bus_find_device() which takes a reference on the adapter which is never released which will result in a reference count leak and render the adapter unremovable. Make sure to put the adapter after creating the client in the same manner that we do for OF.
Fixes: 525e6fabeae2 ("i2c / ACPI: add support for ACPI reconfigure notifications") Signed-off-by: Jamie Iles quic_jiles@quicinc.com Acked-by: Mika Westerberg mika.westerberg@linux.intel.com [wsa: fixed title] Signed-off-by: Wolfram Sang wsa@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/i2c/i2c-core-acpi.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c index 8ba4122fb340..8288cfb44cb2 100644 --- a/drivers/i2c/i2c-core-acpi.c +++ b/drivers/i2c/i2c-core-acpi.c @@ -395,6 +395,7 @@ static int i2c_acpi_notify(struct notifier_block *nb, unsigned long value, break;
i2c_acpi_register_device(adapter, adev, &info); + put_device(&adapter->dev); break; case ACPI_RECONFIG_DEVICE_REMOVE: if (!acpi_device_enumerated(adev))