From 34f220edcdee4982db1dffacd41920112fd9ad91 Mon Sep 17 00:00:00 2001
From: Rob Bradford <robert.bradford@intel.com>
Date: Wed, 15 Sep 2021 15:43:40 +0100
Subject: [PATCH] main: Don't panic() if blocking signals fails

This allows Cloud Hypervisor to be run under `perf` as some of the
signals will already be blocked in the child process.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
---
 src/main.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index afcaa1a49..72c598afd 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -501,7 +501,9 @@ fn start_vmm(cmd_arguments: ArgMatches) -> Result<Option<String>, Error> {
     // installing handlers for, to make sure they only ever run on the
     // dedicated signal handling thread we'll start in a bit.
     for sig in vmm::vm::HANDLED_SIGNALS {
-        block_signal(sig).unwrap();
+        if let Err(e) = block_signal(sig) {
+            eprintln!("Error blocking signals: {}", e);
+        }
     }
 
     event!("vmm", "starting");