From: Borislav Petkov <bp@xxxxxxx>
Avoid homegrown notifier registration checks.
No functional changes.
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: linux-usb@xxxxxxxxxxxxxxx
---
drivers/usb/core/notify.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/core/notify.c b/drivers/usb/core/notify.c
index e6143663778f..80d1bfa61887 100644
--- a/drivers/usb/core/notify.c
+++ b/drivers/usb/core/notify.c
@@ -28,7 +28,8 @@ static BLOCKING_NOTIFIER_HEAD(usb_notifier_list);
*/
void usb_register_notify(struct notifier_block *nb)
{
- blocking_notifier_chain_register(&usb_notifier_list, nb);
+ if (blocking_notifier_chain_register(&usb_notifier_list, nb))
+ pr_warn("USB change notifier already registered\n");
}
EXPORT_SYMBOL_GPL(usb_register_notify);
--
2.29.2
