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usb: gadget: core: force synchronous registration

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BugLink: https://bugs.launchpad.net/bugs/2097301

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: 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>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
This commit is contained in:
John Keeping
2024-09-13 11:23:23 +01:00
committed by Mehmet Basaran
parent a579469c27
commit fa9ffbf318
1 changed files with 1 additions and 0 deletions
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drivers/usb/gadget/udc/core.c
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@@ -1682,6 +1682,7 @@ int usb_gadget_register_driver_owner(struct usb_gadget_driver *driver,
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",