[Powertop] closedir patch

[Michael Vetter <mvetter at suse.com>]

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In case `dir` is NULL we should not call `closedir()` since it's
behaviour is implementation specific.

Patch attached. Please apply with `git am <
powertop-only-closedir.patch`.

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From 553294813635c074230a9d8ba0d7736c23f15ddd Mon Sep 17 00:00:00 2001
From: Michael Vetter <jubalh@iodoru.org>
Date: Tue, 3 Sep 2019 12:56:04 +0200
Subject: [PATCH] intel_cpus.cpp: Only call closedir() if opened

In case `dir` is NULL we should not call `closedir()` since it's
behaviour is implementation specific.
---
 src/cpu/intel_cpus.cpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/cpu/intel_cpus.cpp b/src/cpu/intel_cpus.cpp
index 4dffadc..af473ee 100644
--- a/src/cpu/intel_cpus.cpp
+++ b/src/cpu/intel_cpus.cpp
@@ -142,11 +142,12 @@ intel_util::intel_util()
 void intel_util::byt_has_ahci()
 {
 	dir = opendir("/sys/bus/pci/devices/0000:00:13.0");
-        if (!dir)
-                byt_ahci_support=0;
-	else
+	if (!dir)
+		byt_ahci_support=0;
+	else {
 		byt_ahci_support=1;
-        closedir(dir);
+		closedir(dir);
+	}
 }
 
 int intel_util::get_byt_ahci_support()