greybus: manifest: release cport descriptors to avoid 'excess descriptors' warning

If we fail to initialize a cport of a bundle, we abort the entire
bundle. But that leads to following (unnecessary) warnings as few of the
cport descriptors, belonging to the aborted bundle were never parsed:

"greybus: excess descriptors in interface manifest"

Fix that by releasing all cport descriptors for the aborted bundle.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/manifest.c

@@ -258,6 +258,19 @@ static u32 gb_manifest_parse_cports(struct gb_bundle *bundle)
 		GREYBUS_PROTOCOL_CONTROL);
 exit:
 
+	/*
+	 * Free all cports for this bundle to avoid 'excess descriptors'
+	 * warnings.
+	 */
+	list_for_each_entry_safe(desc, next, &intf->manifest_descs, links) {
+		struct greybus_descriptor_cport *desc_cport = desc->data;
+
+		if (desc->type != GREYBUS_TYPE_CPORT)
+			continue;
+		if (desc_cport->bundle == bundle_id)
+			release_manifest_descriptor(desc);
+	}
+
 	return 0;	/* Error; count should also be 0 */
 }