From 74a79a77223b2ac8539f4e75fbd1026f67b414a9 Mon Sep 17 00:00:00 2001
From: Sebastian Lackner <sebastian@fds-team.de>
Date: Thu, 27 Oct 2016 16:40:55 +0200
Subject: [PATCH] hidclass.sys: Do not return failure when trying to set same
 ringbuffer size.

Signed-off-by: Sebastian Lackner <sebastian@fds-team.de>
Signed-off-by: Aric Stewart <aric@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
---
 dlls/hidclass.sys/buffer.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/dlls/hidclass.sys/buffer.c b/dlls/hidclass.sys/buffer.c
index 894853d38f5..14e83e40f5b 100644
--- a/dlls/hidclass.sys/buffer.c
+++ b/dlls/hidclass.sys/buffer.c
@@ -102,8 +102,10 @@ NTSTATUS RingBuffer_SetSize(struct ReportRingBuffer *ring, UINT size)
     BYTE* new_buffer;
     int i;
 
-    if (size < MIN_BUFFER_SIZE || size > MAX_BUFFER_SIZE || size == ring->size)
+    if (size < MIN_BUFFER_SIZE || size > MAX_BUFFER_SIZE)
         return STATUS_INVALID_PARAMETER;
+    if (size == ring->size)
+        return STATUS_SUCCESS;
 
     EnterCriticalSection(&ring->lock);
     ring->start = ring->end = 0;