From 93e3657e4ce4c346a69b095ad42f15df23ea6654 Mon Sep 17 00:00:00 2001
From: Tal Berlowitz <100570204+talber-nvidia@users.noreply.github.com>
Date: Mon, 26 Sep 2022 19:30:38 +0300
Subject: [PATCH] Patch ifupdown2 (#9630) (#11548)

---
 ...alue-of-utils._execute_subprocess-me.patch | 21 +++++++++++++++++++
 src/ifupdown2/patch/series                    |  1 +
 2 files changed, 22 insertions(+)
 create mode 100644 src/ifupdown2/patch/0003-Fix-the-return-value-of-utils._execute_subprocess-me.patch

diff --git a/src/ifupdown2/patch/0003-Fix-the-return-value-of-utils._execute_subprocess-me.patch b/src/ifupdown2/patch/0003-Fix-the-return-value-of-utils._execute_subprocess-me.patch
new file mode 100644
index 0000000000..39cd481099
--- /dev/null
+++ b/src/ifupdown2/patch/0003-Fix-the-return-value-of-utils._execute_subprocess-me.patch
@@ -0,0 +1,21 @@
+Fix the return value of utils._execute_subprocess method for empty strings
+---
+ ifupdown2/ifupdown/utils.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/ifupdown2/ifupdown/utils.py b/ifupdown2/ifupdown/utils.py
+index d638fe9..0c5d8ce 100644
+--- a/ifupdown2/ifupdown/utils.py
++++ b/ifupdown2/ifupdown/utils.py
+@@ -380,7 +380,7 @@ class utils():
+         finally:
+             utils.disable_subprocess_signal_forwarding(signal.SIGINT)
+ 
+-        cmd_output_string = cmd_output.decode() if cmd_output else cmd_output
++        cmd_output_string = cmd_output.decode() if cmd_output is not None else cmd_output
+ 
+         if cmd_returncode != 0:
+             raise Exception(cls._format_error(cmd,
+-- 
+2.14.1
+
diff --git a/src/ifupdown2/patch/series b/src/ifupdown2/patch/series
index c4e412bbe8..7d0fa15ded 100644
--- a/src/ifupdown2/patch/series
+++ b/src/ifupdown2/patch/series
@@ -1,2 +1,3 @@
 0001-fix-broadcast-addr-encoding.patch
 0002-disable-checks-when-using-no-wait.patch
+0003-Fix-the-return-value-of-utils._execute_subprocess-me.patch