diff mbox series

[v14,2/6] usb: gadget: configfs: Check USB configuration before adding

Message ID 1625908395-5498-3-git-send-email-wcheng@codeaurora.org
State New
Headers show
Series Re-introduce TX FIFO resize for larger EP bursting | expand

Commit Message

Wesley Cheng July 10, 2021, 9:13 a.m. UTC
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>
---
 drivers/usb/gadget/configfs.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 15a607c..f4c7c82 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) {