diff options
| author | Wesley Cheng <wcheng@codeaurora.org> | 2021-07-10 02:13:11 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-12 09:37:25 +0200 |
| commit | 7adf9e3adc398e5d5b7af91e5fdfafa70e86dd36 (patch) | |
| tree | a802d865c7b1f552efde06231d27c92a6300d2ac /drivers/usb/gadget/configfs.c | |
| parent | ce7d0008c2356626f69f37ef1afce8fbc83fe142 (diff) | |
| download | linux-7adf9e3adc398e5d5b7af91e5fdfafa70e86dd36.tar.bz2 | |
usb: gadget: configfs: Check USB configuration before adding
Ensure that the USB gadget is able to support the configuration being
added based on the number of endpoints required from all interfaces. This
is for accounting for any bandwidth or space limitations.
Signed-off-by: Wesley Cheng <wcheng@codeaurora.org>
Link: https://lore.kernel.org/r/1625908395-5498-3-git-send-email-wcheng@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/gadget/configfs.c')
| -rw-r--r-- | drivers/usb/gadget/configfs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 15a607ccef8a..f4c7c8241fe2 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -1404,6 +1404,10 @@ static int configfs_composite_bind(struct usb_gadget *gadget, goto err_purge_funcs; } } + ret = usb_gadget_check_config(cdev->gadget); + if (ret) + goto err_purge_funcs; + usb_ep_autoconfig_reset(cdev->gadget); } if (cdev->use_os_string) { |