From bc6cdb0cf6ca03f418943c227145f5f95c6137ea Mon Sep 17 00:00:00 2001
From: liu-yongqi-63 <liuyongqi5@huawei.com>
Date: Mon, 6 Feb 2023 16:31:02 +0800
Subject: [PATCH] Fix the Histogram exception, that is, when the input data is
 null Tensor, resulting in an error Segmentation fault

---
 .../ccsrc/plugin/device/cpu/kernel/histogram_cpu_kernel.cc     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mindspore/ccsrc/plugin/device/cpu/kernel/histogram_cpu_kernel.cc b/mindspore/ccsrc/plugin/device/cpu/kernel/histogram_cpu_kernel.cc
index 53a3fd5ab62..7157e8490da 100644
--- a/mindspore/ccsrc/plugin/device/cpu/kernel/histogram_cpu_kernel.cc
+++ b/mindspore/ccsrc/plugin/device/cpu/kernel/histogram_cpu_kernel.cc
@@ -81,6 +81,9 @@ bool HistogramCPUKernelMod::Launch(const std::vector<AddressPtr> &inputs, const
 template <typename T, typename InterType>
 void HistogramCPUKernelMod::LaunchKernel(const std::vector<AddressPtr> &inputs,
                                          const std::vector<AddressPtr> &outputs) {
+  if (inputs[kIndex0]->size == 0) {
+    return;
+  }
   auto x_data = reinterpret_cast<T *>(inputs[kIndex0]->addr);
   auto y_data = reinterpret_cast<int32_t *>(outputs[kIndex0]->addr);
   size_t x_num = inputs[kIndex0]->size / sizeof(T);