[Qemu-devel] [PATCH] console: fix console resize

From: Gerd Hoffmann <kraxel@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Gerd Hoffmann" <kraxel@redhat.com>,
	1658634@bugs.launchpad.net,
	"Marc-André Lureau" <marcandre.lureau@redhat.com>
Subject: [Qemu-devel] [PATCH] console: fix console resize
Date: Tue, 24 Jan 2017 11:20:17 +0100	[thread overview]
Message-ID: <1485253217-7405-1-git-send-email-kraxel@redhat.com> (raw)

Only skip surface reallocation in case the old surface was created using
qemu_alloc_display (via qemu_create_displaysurface) too, otherwise we
might end up with a DisplaySurface with the wrong backing storage.

Cc: 1658634@bugs.launchpad.net
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Fixes: cd958edb1fae85d0c7d1e1acbff82d22724e8d64
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 ui/console.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ui/console.c b/ui/console.c
index b9575f2..67c65b7 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -2121,7 +2121,7 @@ void qemu_console_resize(QemuConsole *s, int width, int height)
 
     assert(s->console_type == GRAPHIC_CONSOLE);
 
-    if (s->surface &&
+    if (s->surface && (surface->flags & QEMU_ALLOCATED_FLAG) &&
         pixman_image_get_width(s->surface->image) == width &&
         pixman_image_get_height(s->surface->image) == height) {
         return;
-- 
1.8.3.1
