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usb: gadget: core: force synchronous registration

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commit df9158826b 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: fc274c1e99 ("USB: gadget: Add a new bus for gadgets")
Cc: stable@vger.kernel.org
Signed-off-by: John Keeping <jkeeping@inmusicbrands.com>
Link: https://lore.kernel.org/r/20240913102325.2826261-1-jkeeping@inmusicbrands.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
John Keeping 2024-09-13 11:23:23 +01:00 committed by Greg Kroah-Hartman
parent 0770cda1e4
commit 0b97fe09f0
1 changed files with 1 additions and 0 deletions
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1
drivers/usb/gadget/udc/core.c
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@ -1671,6 +1671,7 @@ int usb_gadget_register_driver_owner(struct usb_gadget_driver *driver,
driver->driver.bus = &gadget_bus_type; driver->driver.bus = &gadget_bus_type;
driver->driver.owner = owner; driver->driver.owner = owner;
driver->driver.mod_name = mod_name; driver->driver.mod_name = mod_name;
driver->driver.probe_type = PROBE_FORCE_SYNCHRONOUS;
ret = driver_register(&driver->driver); ret = driver_register(&driver->driver);
if (ret) { if (ret) {
pr_warn("%s: driver registration failed: %d\n", pr_warn("%s: driver registration failed: %d\n",