From: John Keeping <jkeeping@xxxxxxxxxxxxxxxxx>
commit df9158826b00e53f42c67d62c887a84490d80a0a upstream.
Registering a gadget driver is expected to complete synchronously and
immediately after calling driver_register() this function checks that
the driver has bound so as to return an error.
Set PROBE_FORCE_SYNCHRONOUS to ensure this is the case even when
asynchronous probing is set as the default.
Fixes: fc274c1e99731 ("USB: gadget: Add a new bus for gadgets")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: John Keeping <jkeeping@xxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240913102325.2826261-1-jkeeping@xxxxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/udc/core.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -1671,6 +1671,7 @@ int usb_gadget_register_driver_owner(str
driver->driver.bus = &gadget_bus_type;
driver->driver.owner = owner;
driver->driver.mod_name = mod_name;
+ driver->driver.probe_type = PROBE_FORCE_SYNCHRONOUS;
ret = driver_register(&driver->driver);
if (ret) {
pr_warn("%s: driver registration failed: %d\n",
Patches currently in stable-queue which might be from jkeeping@xxxxxxxxxxxxxxxxx are
queue-6.1/usb-gadget-core-force-synchronous-registration.patch
