From 070407809efa2c53a395f27c9ab84a2e2bd9a750 Mon Sep 17 00:00:00 2001
From: Steven Moreland <smoreland@google.com>
Date: Mon, 4 Apr 2022 19:34:42 +0000
Subject: [PATCH] Print error when netlink socket not created.

The panic here didn't show what error might be encountered
(EPERM, for instance).

Bug: 228077254
Test: check log on error
Change-Id: I56f34f87430a68266af85ba1d0abb2aeb2c05407
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3569267
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Andrew Walbran <qwandor@google.com>
Commit-Queue: Steven Moreland <smoreland@google.com>
---
 devices/src/acpi.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/devices/src/acpi.rs b/devices/src/acpi.rs
index b36931247a..ecf12d48b2 100644
--- a/devices/src/acpi.rs
+++ b/devices/src/acpi.rs
@@ -320,7 +320,13 @@ fn acpi_event_pwrbtn_class(
 
 fn get_acpi_event_group() -> Option<u32> {
     // Create netlink generic socket which will be used to query about given family name
-    let netlink_ctrl_sock = NetlinkGenericSocket::new(0).unwrap();
+    let netlink_ctrl_sock = match NetlinkGenericSocket::new(0) {
+        Ok(sock) => sock,
+        Err(e) => {
+            error!("netlink generic socket creation error: {}", e);
+            return None;
+        }
+    };
 
     let nlmsg_family_response = netlink_ctrl_sock
         .family_name_query("acpi_event".to_string())