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[PATCH 2/9] console: add check for ui_info pointer
From: |
Gerd Hoffmann |
Subject: |
[PATCH 2/9] console: add check for ui_info pointer |
Date: |
Thu, 3 Dec 2020 12:07:58 +0100 |
Verify the hw_ops->ui_info function pointer is non-zero before
calling it. Can be triggered by qxl which changes hw_ops when
switching between qxl-native and vga-compat modes.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
ui/console.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/ui/console.c b/ui/console.c
index 16b326854080..8930808d0b6d 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -1539,7 +1539,9 @@ static void dpy_set_ui_info_timer(void *opaque)
{
QemuConsole *con = opaque;
- con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);
+ if (con->hw_ops->ui_info) {
+ con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);
+ }
}
bool dpy_ui_info_supported(QemuConsole *con)
--
2.27.0