diff mbox series

[v1,3/5] tests/plugin: prevent uninitialized warning

Message ID 20200207150118.23007-4-alex.bennee@linaro.org (mailing list archive)
State New, archived
Headers show
Series plugins/next | expand

Commit Message

Alex Bennée Feb. 7, 2020, 3:01 p.m. UTC
From: Chen Qun <kuhn.chenqun@huawei.com>

According to the glibc function requirements, we need initialise
 the variable. Otherwise there will be compilation warnings:

glib-autocleanups.h:28:3: warning: ‘out’ may be
used uninitialized in this function [-Wmaybe-uninitialized]
   g_free (*pp);
   ^~~~~~~~~~~~

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200206093238.203984-1-kuhn.chenqun@huawei.com>
[AJB: uses Thomas's single line allocation]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 tests/plugin/bb.c   | 6 +++---
 tests/plugin/insn.c | 3 +--
 2 files changed, 4 insertions(+), 5 deletions(-)

Comments

Richard Henderson Feb. 11, 2020, 5:57 p.m. UTC | #1
On 2/7/20 7:01 AM, Alex Bennée wrote:
> From: Chen Qun <kuhn.chenqun@huawei.com>
> 
> According to the glibc function requirements, we need initialise

s/glibc/glib/

>  the variable. Otherwise there will be compilation warnings:
> 
> glib-autocleanups.h:28:3: warning: ‘out’ may be
> used uninitialized in this function [-Wmaybe-uninitialized]
>    g_free (*pp);
>    ^~~~~~~~~~~~
> 
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
> Reviewed-by: Thomas Huth <thuth@redhat.com>
> Message-Id: <20200206093238.203984-1-kuhn.chenqun@huawei.com>
> [AJB: uses Thomas's single line allocation]
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> ---
>  tests/plugin/bb.c   | 6 +++---
>  tests/plugin/insn.c | 3 +--
>  2 files changed, 4 insertions(+), 5 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~
diff mbox series

Patch

diff --git a/tests/plugin/bb.c b/tests/plugin/bb.c
index f30bea08dcc..df19fd359df 100644
--- a/tests/plugin/bb.c
+++ b/tests/plugin/bb.c
@@ -22,9 +22,9 @@  static bool do_inline;
 
 static void plugin_exit(qemu_plugin_id_t id, void *p)
 {
-    g_autofree gchar *out;
-    out = g_strdup_printf("bb's: %" PRIu64", insns: %" PRIu64 "\n",
-                          bb_count, insn_count);
+    g_autofree gchar *out = g_strdup_printf(
+        "bb's: %" PRIu64", insns: %" PRIu64 "\n",
+        bb_count, insn_count);
     qemu_plugin_outs(out);
 }
 
diff --git a/tests/plugin/insn.c b/tests/plugin/insn.c
index 0a8f5a0000e..a9a6e412373 100644
--- a/tests/plugin/insn.c
+++ b/tests/plugin/insn.c
@@ -44,8 +44,7 @@  static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb)
 
 static void plugin_exit(qemu_plugin_id_t id, void *p)
 {
-    g_autofree gchar *out;
-    out = g_strdup_printf("insns: %" PRIu64 "\n", insn_count);
+    g_autofree gchar *out = g_strdup_printf("insns: %" PRIu64 "\n", insn_count);
     qemu_plugin_outs(out);
 }