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authorSimon Glass <sjg@chromium.org>2016-03-13 08:22:33 -0600
committerSimon Glass <sjg@chromium.org>2016-03-17 21:27:39 -0600
commit9b9775687f85c8b91d849e7dfdc380db4730672c (patch)
tree2489ce7db4881e745531b27d0f343e2afeb86932
parentc81d0d215ea38d3b8cf3684a57f4ecaca3c01b03 (diff)
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dm: usb: Unbind old block devices when shutting down USB
When 'usb start' is used, block devices are created for any USB flash sticks and disks, etc. When 'usb stop' is used, these block devices are currently not removed. We don't want old block devices hanging around since they can still be visible to U-Boot. Therefore, when USB is shut down, remove and unbind all the block devices created by the USB subsystem. Possibly we should unbind all devices which don't cause problems by being unbound. Most likely we can remove everything except USB controllers, hubs and emulators. We can consider that later. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Stephen Warren <swarren@nvidia.com>
-rw-r--r--drivers/usb/host/usb-uclass.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/host/usb-uclass.c b/drivers/usb/host/usb-uclass.c
index 50538e0..69c9a50 100644
--- a/drivers/usb/host/usb-uclass.c
+++ b/drivers/usb/host/usb-uclass.c
@@ -159,7 +159,11 @@ int usb_stop(void)
if (ret && !err)
err = ret;
}
-
+#ifdef CONFIG_BLK
+ ret = blk_unbind_all(IF_TYPE_USB);
+ if (ret && !err)
+ err = ret;
+#endif
#ifdef CONFIG_SANDBOX
struct udevice *dev;