Based on the documentation of usb_enable_autosuspend(), the
caller must hold udev's device lock.
Signed-off-by: Salah Triki <salah.triki@xxxxxxxxx>
---
sound/usb/card.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/sound/usb/card.c b/sound/usb/card.c
index 2f6a62416c05..9290ba0acd5f 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -907,8 +907,13 @@ static void usb_audio_disconnect(struct usb_interface *intf)
}
}
- if (chip->quirk_type & QUIRK_SETUP_DISABLE_AUTOSUSPEND)
- usb_enable_autosuspend(interface_to_usbdev(intf));
+ if (chip->quirk_type & QUIRK_SETUP_DISABLE_AUTOSUSPEND) {
+ struct usb_device *udev = interface_to_usbdev(intf);
+
+ usb_lock_device(udev);
+ usb_enable_autosuspend(udev);
+ usb_unlock_device(udev);
+ }
chip->num_interfaces--;
if (chip->num_interfaces <= 0) {
--
2.25.1
