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authorJohn Keeping <jkeeping@inmusicbrands.com>2024-09-13 13:23:23 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-10-17 16:24:34 +0300
commit0b97fe09f09922b48d021fdf8f46fa8fc3fd6b68 (patch)
treeb2585484680bbb8f1966e77efce135a398d36363
parent0770cda1e40f5c841bdc547008ae295ad4f82b1d (diff)
downloadlinux-0b97fe09f09922b48d021fdf8f46fa8fc3fd6b68.tar.xz
usb: gadget: core: force synchronous registration
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@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>
-rw-r--r--drivers/usb/gadget/udc/core.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index 9886e1cb1398..33979f61dc4d 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -1671,6 +1671,7 @@ 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",