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FROMGIT: usb: gadget: configfs: Check USB configuration before adding

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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>
(cherry picked from commit 7adf9e3adc
 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-next)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I956c5f1a707770d5b6bf52dbe0512654df38edd4
This commit is contained in:
Wesley Cheng
2021-07-10 02:13:11 -07:00
committed by Todd Kjos
parent 6da5e7afbf
commit 1e11f36199
1 changed files with 4 additions and 0 deletions
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4
drivers/usb/gadget/configfs.c
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@@ -1436,6 +1436,10 @@ 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) {