ioport: unregister port device when unregistering port

Ioport register bus devices when they registered. These devices are not
unregistered when the ioports entries containing their headers are
unregistered. This results in dangling pointers in the device rb_tree.

Unregister ioport bus devices when the ioport is unregistered.

Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/ioport.c b/ioport.c
index 263fe50f..505e8220 100644
--- a/ioport.c
+++ b/ioport.c
@@ -133,6 +133,7 @@ int ioport__unregister(struct kvm *kvm, u16 port)
 	if (!entry)
 		goto done;
 
+	device__unregister(&entry->dev_hdr);
 	ioport_remove(&ioport_tree, entry);
 
 	free(entry);
@@ -155,6 +156,7 @@ static void ioport__unregister_all(void)
 	while (rb) {
 		rb_node = rb_int(rb);
 		entry = ioport_node(rb_node);
+		device__unregister(&entry->dev_hdr);
 		ioport_remove(&ioport_tree, entry);
 		free(entry);
 		rb = rb_first(&ioport_tree);