diff options
| author | Roy Luo <royluo@google.com> | 2023-11-28 22:17:56 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-13 18:45:33 +0100 |
| commit | 9a3e02063016f12287dde3077b787586220b3be6 (patch) | |
| tree | f5a7b04ccf064f13485b0ac45a5cfad41c12eb8f /drivers/usb | |
| parent | fd728449807e6bed89e8c0f98d9b22760517f40a (diff) | |
| download | linux-stable-9a3e02063016f12287dde3077b787586220b3be6.tar.gz linux-stable-9a3e02063016f12287dde3077b787586220b3be6.tar.bz2 linux-stable-9a3e02063016f12287dde3077b787586220b3be6.zip | |
USB: gadget: core: adjust uevent timing on gadget unbind
commit 73ea73affe8622bdf292de898da869d441da6a9d upstream.
The KOBJ_CHANGE uevent is sent before gadget unbind is actually
executed, resulting in inaccurate uevent emitted at incorrect timing
(the uevent would have USB_UDC_DRIVER variable set while it would
soon be removed).
Move the KOBJ_CHANGE uevent to the end of the unbind function so that
uevent is sent only after the change has been made.
Fixes: 2ccea03a8f7e ("usb: gadget: introduce UDC Class")
Cc: stable@vger.kernel.org
Signed-off-by: Roy Luo <royluo@google.com>
Link: https://lore.kernel.org/r/20231128221756.2591158-1-royluo@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/udc/core.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c index 7166d1117742..781c8338546f 100644 --- a/drivers/usb/gadget/udc/core.c +++ b/drivers/usb/gadget/udc/core.c @@ -1635,8 +1635,6 @@ static void gadget_unbind_driver(struct device *dev) dev_dbg(&udc->dev, "unbinding gadget driver [%s]\n", driver->function); - kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE); - udc->allow_connect = false; cancel_work_sync(&udc->vbus_work); mutex_lock(&udc->connect_lock); @@ -1656,6 +1654,8 @@ static void gadget_unbind_driver(struct device *dev) driver->is_bound = false; udc->driver = NULL; mutex_unlock(&udc_lock); + + kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE); } /* ------------------------------------------------------------------------- */ |