staging: greybus: audio_manager: fix a missing check of ida_simple_get

ida_simple_get could fail. The fix inserts a check for its return value. Signed-off-by: Kangjie Lu <[email protected]> Reviewed-by: Vaibhav Agarwal <[email protected]> Acked-by: Viresh Kumar <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
renliguo · Mar 29, 2019 · b5af36e · b5af36e
1 parent d5cac52
commit b5af36e
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/staging/greybus/audio_manager.c b/drivers/staging/greybus/audio_manager.c
@@ -45,6 +45,9 @@ int gb_audio_manager_add(struct gb_audio_manager_module_descriptor *desc)
 	int err;
 
 	id = ida_simple_get(&module_id, 0, 0, GFP_KERNEL);
+	if (id < 0)
+		return id;
+
 	err = gb_audio_manager_module_create(&module, manager_kset,
 					     id, desc);
 	if (err) {