[OE-core] [PATCH] babeltrace2: initialize the other_entry pointer

[mingli.yu at windriver.com]

From: Mingli Yu <mingli.yu at windriver.com>

When add below line to local.conf to enable debug build:

DEBUG_BUILD = "1"

There comes below failure when run "bitbake babeltrace2"
| ../../../../../git/src/plugins/ctf/fs-src/fs.c: In function 'ds_index_insert_ds_index_entry_sorted':
| ../../../../../git/src/plugins/ctf/fs-src/fs.c:702:5: error: 'other_entry' may be used uninitialized in this function [-Werror=maybe-uninitialized]
|   702 |    !ds_index_entries_equal(entry, other_entry)) {

So initialize the other_entry pointer to fix the above error.

Signed-off-by: Mingli Yu <mingli.yu at windriver.com>
---
 .../0001-fs.c-initialize-other_entry.patch         | 33 ++++++++++++++++++++++
 meta/recipes-kernel/lttng/babeltrace2_2.0.1.bb     |  1 +
 2 files changed, 34 insertions(+)
 create mode 100644 meta/recipes-kernel/lttng/babeltrace2/0001-fs.c-initialize-other_entry.patch

diff --git a/meta/recipes-kernel/lttng/babeltrace2/0001-fs.c-initialize-other_entry.patch b/meta/recipes-kernel/lttng/babeltrace2/0001-fs.c-initialize-other_entry.patch
new file mode 100644
index 0000000..b56b3bd
--- /dev/null
+++ b/meta/recipes-kernel/lttng/babeltrace2/0001-fs.c-initialize-other_entry.patch
@@ -0,0 +1,33 @@
+From 42dae692b9057d03ce9a0651f061472e9dd90130 Mon Sep 17 00:00:00 2001
+From: Mingli Yu <mingli.yu at windriver.com>
+Date: Wed, 11 Mar 2020 08:44:42 +0000
+Subject: [PATCH] fs.c: initialize the other_entry variable
+
+Initialize the pointer other_entry to fix the below error:
+| ../../../../../git/src/plugins/ctf/fs-src/fs.c: In function 'ds_index_insert_ds_index_entry_sorted':
+| ../../../../../git/src/plugins/ctf/fs-src/fs.c:702:5: error: 'other_entry' may be used uninitialized in this function [-Werror=maybe-uninitialized]
+|   702 |    !ds_index_entries_equal(entry, other_entry)) {
+
+Upstream-Status: Submitted [https://lists.lttng.org/pipermail/lttng-dev/2020-March/029549.html]
+
+Signed-off-by: Mingli Yu <mingli.yu at windriver.com>
+---
+ src/plugins/ctf/fs-src/fs.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/plugins/ctf/fs-src/fs.c b/src/plugins/ctf/fs-src/fs.c
+index e87523a3..a6b5315f 100644
+--- a/src/plugins/ctf/fs-src/fs.c
++++ b/src/plugins/ctf/fs-src/fs.c
+@@ -680,7 +680,7 @@ void ds_index_insert_ds_index_entry_sorted(
+ 	struct ctf_fs_ds_index_entry *entry)
+ {
+ 	guint i;
+-	struct ctf_fs_ds_index_entry *other_entry;
++	struct ctf_fs_ds_index_entry *other_entry = NULL;
+ 
+ 	/* Find the spot where to insert this index entry. */
+ 	for (i = 0; i < index->entries->len; i++) {
+-- 
+2.24.1
+
diff --git a/meta/recipes-kernel/lttng/babeltrace2_2.0.1.bb b/meta/recipes-kernel/lttng/babeltrace2_2.0.1.bb
index 16953d6..c027d8b 100644
--- a/meta/recipes-kernel/lttng/babeltrace2_2.0.1.bb
+++ b/meta/recipes-kernel/lttng/babeltrace2_2.0.1.bb
@@ -10,6 +10,7 @@ DEPENDS = "glib-2.0 util-linux popt bison-native flex-native"
 SRC_URI = "git://git.linuxfoundation.org/diamon/babeltrace.git;branch=stable-2.0 \
 	   file://run-ptest \
 	   file://0001-tests-do-not-run-test-applications-from-.libs.patch \
+	   file://0001-fs.c-initialize-other_entry.patch \
 	  "
 SRCREV = "06df58f89ee51b1a2c6a2c187ec3f15691633910"
 UPSTREAM_CHECK_GITTAGREGEX = "v(?P<pver>2(\.\d+)+)$"
-- 
2.7.4