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authorRoy Luo <royluo@google.com>2023-11-28 23:17:56 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-12-04 14:22:58 +0100
commit73ea73affe8622bdf292de898da869d441da6a9d (patch)
tree611425d6657d679008d1c156b8473a0f408ae035 /drivers
parentLinux 6.7-rc4 (diff)
downloadlinux-73ea73affe8622bdf292de898da869d441da6a9d.tar.xz
linux-73ea73affe8622bdf292de898da869d441da6a9d.zip
USB: gadget: core: adjust uevent timing on gadget unbind
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')
-rw-r--r--drivers/usb/gadget/udc/core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index ded9531f141b..d59f94464b87 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -1646,8 +1646,6 @@ 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);
@@ -1667,6 +1665,8 @@ 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);
}
/* ------------------------------------------------------------------------- */