From 017962caec17f27a5438b0ab1be2ee3226d00a1c Mon Sep 17 00:00:00 2001
From: Christophe Favergeon <Christophe.Favergeon@arm.com>
Date: Mon, 30 Mar 2020 11:19:44 +0200
Subject: [PATCH] CMSIS-DSP: Fix for issue 874

---
 Source/BasicMathFunctions/arm_scale_f32.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/Source/BasicMathFunctions/arm_scale_f32.c b/Source/BasicMathFunctions/arm_scale_f32.c
index 0b970191..053492f6 100644
--- a/Source/BasicMathFunctions/arm_scale_f32.c
+++ b/Source/BasicMathFunctions/arm_scale_f32.c
@@ -164,16 +164,23 @@ void arm_scale_f32(
 
   while (blkCnt > 0U)
   {
+    float32_t in1, in2, in3, in4;
+
     /* C = A * scale */
 
     /* Scale input and store result in destination buffer. */
-    *pDst++ = (*pSrc++) * scale;
+    in1 = (*pSrc++) * scale;
 
-    *pDst++ = (*pSrc++) * scale;
+    in2 = (*pSrc++) * scale;
 
-    *pDst++ = (*pSrc++) * scale;
+    in3 = (*pSrc++) * scale;
 
-    *pDst++ = (*pSrc++) * scale;
+    in4 = (*pSrc++) * scale;
+
+    *pDst++ = in1;
+    *pDst++ = in2;
+    *pDst++ = in3;
+    *pDst++ = in4;
 
     /* Decrement loop counter */
     blkCnt--;