Zebediah Figura : setupapi: Treat DIGCF_ALLCLASSES as if a NULL device class was given.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 5ff5c7036ef028d9541b6407eeca05e37667cc84
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=5ff5c7036ef028d9541b6407eeca05e37667cc84

Author: Zebediah Figura <z.figura12 at gmail.com>
Date:   Mon May 27 22:13:16 2019 -0500

setupapi: Treat DIGCF_ALLCLASSES as if a NULL device class was given.

Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/setupapi/devinst.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/setupapi/devinst.c b/dlls/setupapi/devinst.c
index 0279d10..3b58513 100644
--- a/dlls/setupapi/devinst.c
+++ b/dlls/setupapi/devinst.c
@@ -2448,6 +2448,9 @@ HDEVINFO WINAPI SetupDiGetClassDevsExW(const GUID *class, PCWSTR enumstr, HWND p
         SetLastError(ERROR_INVALID_PARAMETER);
         return INVALID_HANDLE_VALUE;
     }
+    if (flags & DIGCF_ALLCLASSES)
+        class = NULL;
+
     if (flags & unsupportedFlags)
         WARN("unsupported flags %08x\n", flags & unsupportedFlags);
     if (deviceset)