fix racecheck warning in scanRows kernel

(cherry picked from commit fb15bdfb21)
10 years ago · fe1bd0cc2f
parent a752f25944
commit fe1bd0cc2f
1 changed files with 2 additions and 1 deletions
--- a/modules/gpu/src/nvidia/NPP_staging/NPP_staging.cu
+++ b/modules/gpu/src/nvidia/NPP_staging/NPP_staging.cu
@ -280,7 +280,8 @@ __global__ void scanRows(T_in *d_src, Ncv32u texOffs, Ncv32u srcWidth, Ncv32u sr

    __shared__ T_out shmem[NUM_SCAN_THREADS * 2];
    __shared__ T_out carryElem;
-    carryElem = 0;
+    if (threadIdx.x == 0)
+        carryElem = 0;
    __syncthreads();

    while (numBuckets--)