pigz: fix one failure of command "unpigz -l"

Refer [1], "unpigz -l" failed with error:
$ ./unpigz -l test.txt.gz
compressed original reduced name
228799 209715200 99.9% test.txt
unpigz: can't destroy locked resource (pigz.c:2622:mutex_destroy)
unpigz: abort: internal threads error

or

$ ./unpigz -l test.txt.gz
unpigz: skipping: test.txt.gz unrecognized format
unpigz: can't destroy locked resource (pigz.c:2622:mutex_destroy)
unpigz: abort: internal threads error

[1] https://github.com/madler/pigz/issues/96

(From OE-Core rev: 856d9e07e60b6f85681782107934a1bdc12c6429)

Signed-off-by: Changqing Li <changqing.li@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 52 insertions, 1 deletions

diff --git a/meta/recipes-extended/pigz/files/0001-Fix-bug-when-combining-l-with-d.patch b/meta/recipes-extended/pigz/files/0001-Fix-bug-when-combining-l-with-d.patch
new file mode 100644
index 0000000000..9c301f2054
--- /dev/null
+++ b/meta/recipes-extended/pigz/files/0001-Fix-bug-when-combining-l-with-d.patch
@@ -0,0 +1,50 @@
+From 65986f3d12d434b9bc428ceb6fcb1f6eeeb2c47d Mon Sep 17 00:00:00 2001
+From: Changqing Li <changqing.li@windriver.com>
+Date: Mon, 17 Jan 2022 15:36:56 +0800
+Subject: [PATCH] Fix bug when combining -l with -d.
+
+Though it makes no sense to do pigz -ld, that is implicit when
+doing unpigz -l. This commit fixes a bug for that combination.
+
+Upstream-Status: Backport [https://github.com/madler/pigz/commit/326bba44aa102c707dd6ebcd2fc3f413b3119db0]
+
+Signed-off-by: Changqing Li <changqing.li@windriver.com>
+---
+ pigz.c | 14 +++++++-------
+ 1 file changed, 7 insertions(+), 7 deletions(-)
+
+diff --git a/pigz.c b/pigz.c
+index f90157f..d648216 100644
+--- a/pigz.c
++++ b/pigz.c
+@@ -4007,6 +4007,13 @@ local void process(char *path) {
+     }
+     SET_BINARY_MODE(g.ind);
+ 
++    // if requested, just list information about the input file
++    if (g.list && g.decode != 2) {
++        list_info();
++        load_end();
++        return;
++    }
++
+     // if decoding or testing, try to read gzip header
+     if (g.decode) {
+         in_init();
+@@ -4048,13 +4055,6 @@ local void process(char *path) {
+         }
+     }
+ 
+-    // if requested, just list information about input file
+-    if (g.list) {
+-        list_info();
+-        load_end();
+-        return;
+-    }
+-
+     // create output file out, descriptor outd
+     if (path == NULL || g.pipeout) {
+         // write to stdout
+-- 
+2.17.1
+
diff --git a/meta/recipes-extended/pigz/pigz_2.6.bb b/meta/recipes-extended/pigz/pigz_2.6.bb
index 3566e18b7e..d490a6a722 100644
--- a/meta/recipes-extended/pigz/pigz_2.6.bb
+++ b/meta/recipes-extended/pigz/pigz_2.6.bb
@@ -8,7 +8,8 @@ SECTION = "console/utils"
 LICENSE = "Zlib & Apache-2.0"
 LIC_FILES_CHKSUM = "file://pigz.c;md5=9ae6dee8ceba9610596ed0ada493d142;beginline=7;endline=21"
 
-SRC_URI = "http://zlib.net/${BPN}/fossils/${BP}.tar.gz"
+SRC_URI = "http://zlib.net/${BPN}/fossils/${BP}.tar.gz \
+           file://0001-Fix-bug-when-combining-l-with-d.patch"
 SRC_URI[sha256sum] = "2eed7b0d7449d1d70903f2a62cd6005d262eb3a8c9e98687bc8cbb5809db2a7d"
 PROVIDES:class-native += "gzip-native"