linux-kernel - [PATCH AUTOSEL 4.18 69/92] selftests/android: initialize heap

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Message-ID: <20180915012944.179481-68-alexander.levin@microsoft.com>
Date:   Sat, 15 Sep 2018 01:30:38 +0000
From:   Sasha Levin <Alexander.Levin@...rosoft.com>
To:     "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Li Zhijian <lizhijian@...fujitsu.com>,
        Shuah Khan <shuah@...nel.org>,
        Pintu Agarwal <pintu.ping@...il.com>,
        Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL 4.18 69/92] selftests/android: initialize heap_type to
 avoid compiling warning

From: Li Zhijian <lizhijian@...fujitsu.com>

[ Upstream commit cc7c673032fc7427087e74b75f732b43db38a256 ]

Initialize heap_type to ION_HEAP_TYPE_SYSTEM to avoid "used uninitialized"
compiler warning. heap_type gets used after initialization, this change is
to just keep the compiler happy.

root@...lkp-nex04-8G-7 ~/linux-v4.18-rc2/tools/testing/selftests/android# make
make[1]: warning: jobserver unavailable: using -j1.  Add '+' to parent make rule.
make[1]: Entering directory '/root/linux-v4.18-rc2/tools/testing/selftests/android/ion'
gcc  -I. -I../../../../../drivers/staging/android/uapi/ -I../../../../../usr/include/ -Wall -O2 -g    ionapp_export.c ipcsocket.c ionutils.c   -o ionapp_export
ionapp_export.c: In function 'main':
ionapp_export.c:91:2: warning: 'heap_type' may be used uninitialized in
this function [-Wmaybe-uninitialized]
  printf("heap_type: %ld, heap_size: %ld\n", heap_type, heap_size);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

CC: Shuah Khan <shuah@...nel.org>
CC: Pintu Agarwal <pintu.ping@...il.com>
Signed-off-by: Li Zhijian <lizhijian@...fujitsu.com>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@...nel.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 tools/testing/selftests/android/ion/ionapp_export.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/android/ion/ionapp_export.c b/tools/testing/selftests/android/ion/ionapp_export.c
index a944e72621a9..b5fa0a2dc968 100644
--- a/tools/testing/selftests/android/ion/ionapp_export.c
+++ b/tools/testing/selftests/android/ion/ionapp_export.c
@@ -51,6 +51,7 @@ int main(int argc, char *argv[])

 	heap_size = 0;
 	flags = 0;
+	heap_type = ION_HEAP_TYPE_SYSTEM;

 	while ((opt = getopt(argc, argv, "hi:s:")) != -1) {
 		switch (opt) {
-- 
2.17.1