diff --git a/llvm/tools/llvm-exegesis/lib/BenchmarkRunner.cpp b/llvm/tools/llvm-exegesis/lib/BenchmarkRunner.cpp
index 0bafb05b7a1d7..96e27e6216628 100644
--- a/llvm/tools/llvm-exegesis/lib/BenchmarkRunner.cpp
+++ b/llvm/tools/llvm-exegesis/lib/BenchmarkRunner.cpp
@@ -260,6 +260,12 @@ class SubProcessFunctionExecutorImpl
       return AddMemDefError;
 
     pid_t ParentOrChildPID = fork();
+
+    if (ParentOrChildPID == -1) {
+      return make_error<Failure>("Failed to create child process: " +
+                                 Twine(strerror(errno)));
+    }
+
     if (ParentOrChildPID == 0) {
       // We are in the child process, close the write end of the pipe
       close(PipeFiles[1]);