[PATCH 1/3] firmware: google: Release devices before unregistering the bus

From: patrick . rudolph
Date: Fri Nov 15 2019 - 08:50:11 EST


From: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx>

Fix a bug where the kernel module can't be loaded after it has been
unloaded as the devices are still present and conflicting with the
to be created coreboot devices.

Signed-off-by: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx>
---
drivers/firmware/google/coreboot_table.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/firmware/google/coreboot_table.c b/drivers/firmware/google/coreboot_table.c
index 8d132e4f008a..88c6545bebf4 100644
--- a/drivers/firmware/google/coreboot_table.c
+++ b/drivers/firmware/google/coreboot_table.c
@@ -163,8 +163,14 @@ static int coreboot_table_probe(struct platform_device *pdev)
return ret;
}

+static int __cb_dev_unregister(struct device *dev, void *dummy)
+{
+ device_unregister(dev);
+}
+
static int coreboot_table_remove(struct platform_device *pdev)
{
+ bus_for_each_dev(&coreboot_bus_type, NULL, NULL, __cb_dev_unregister);
bus_unregister(&coreboot_bus_type);
return 0;
}
--
2.21.0