From: Patrick Rudolph <patrick.rudolph@9elements.com>
Date: Mon, 18 Nov 2019 10:19:29 +0000 (+0100)
Subject: firmware: google: Release devices before unregistering the bus
X-Git-Tag: v5.15~4622^2~17
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cae0970ee9c4527f189aac378c50e2f0ed020418;p=platform%2Fkernel%2Flinux-starfive.git

firmware: google: Release devices before unregistering the bus

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@9elements.com>
Link: https://lore.kernel.org/r/20191118101934.22526-2-patrick.rudolph@9elements.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/firmware/google/coreboot_table.c b/drivers/firmware/google/coreboot_table.c
index 8d132e4..0205987 100644
--- a/drivers/firmware/google/coreboot_table.c
+++ b/drivers/firmware/google/coreboot_table.c
@@ -163,8 +163,15 @@ static int coreboot_table_probe(struct platform_device *pdev)
 	return ret;
 }
 
+static int __cb_dev_unregister(struct device *dev, void *dummy)
+{
+	device_unregister(dev);
+	return 0;
+}
+
 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;
 }