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[v1,01/34] ui: avoid compiler warnings from unused clipboard info variable

Message ID 20220105135009.1584676-2-alex.bennee@linaro.org
State New
Headers show
Series testing/next and other misc fixes | expand

Commit Message

Alex Bennée Jan. 5, 2022, 1:49 p.m. UTC 
From: Daniel P. Berrangé <berrange@redhat.com>

With latest clang 13.0.0 we get

../ui/clipboard.c:47:34: error: variable 'old' set but not used [-Werror,-Wunused-but-set-variable]
    g_autoptr(QemuClipboardInfo) old = NULL;
                                 ^

The compiler can't tell that we only declared this variable in
order to get the side effect of free'ing it when out of scope.

This pattern is a little dubious for a use of g_autoptr, so
rewrite the code to avoid it.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
[AJB: fix merge conflict]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20211215141949.3512719-2-berrange@redhat.com>
---
 ui/clipboard.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
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Patch

diff --git a/ui/clipboard.c b/ui/clipboard.c
index 82572ea116..5f15cf853d 100644
--- a/ui/clipboard.c
+++ b/ui/clipboard.c
@@ -62,13 +62,11 @@  void qemu_clipboard_update(QemuClipboardInfo *info)
         .type = QEMU_CLIPBOARD_UPDATE_INFO,
         .info = info,
     };
-    g_autoptr(QemuClipboardInfo) old = NULL;
-
     assert(info->selection < QEMU_CLIPBOARD_SELECTION__COUNT);
 
     notifier_list_notify(&clipboard_notifiers, &notify);
 
-    old = cbinfo[info->selection];
+    qemu_clipboard_info_unref(cbinfo[info->selection]);
     cbinfo[info->selection] = qemu_clipboard_info_ref(info);
 }