From: Thomas Faber <thomas.faber@reactos.org>
Date: Sun, 7 Apr 2019 09:54:43 +0000 (+0200)
Subject: [USBCCGP] Allow unconfiguring the device in USBCCGP_PDOSelectConfiguration.
X-Git-Tag: 0.4.14-dev~1198
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=46b0f6d9deec116523bf8748a05abecc0ac22672

[USBCCGP] Allow unconfiguring the device in USBCCGP_PDOSelectConfiguration.

Fixes device removal for USB audio devices.
---

diff --git a/drivers/usb/usbccgp/pdo.c b/drivers/usb/usbccgp/pdo.c
index 06a549f3158..bcd0acb075a 100644
--- a/drivers/usb/usbccgp/pdo.c
+++ b/drivers/usb/usbccgp/pdo.c
@@ -718,6 +718,14 @@ USBCCGP_PDOSelectConfiguration(
         return STATUS_SUCCESS;
     }
 
+    //
+    // if there is no configuration descriptor, unconfigure the device
+    //
+    if (Urb->UrbSelectConfiguration.ConfigurationDescriptor == NULL)
+    {
+        return STATUS_SUCCESS;
+    }
+
     // sanity checks
     //C_ASSERT(sizeof(struct _URB_HEADER) == 16);
     //C_ASSERT(FIELD_OFFSET(struct _URB_SELECT_CONFIGURATION, Interface.Length) == 24);