[Qemu-devel] [PATCH] creen dump not supported when no console

[Cao,Bing Bu]

I have tested the issue use "-vga none -nographic" option.
QEMU segment faults.

But i think there is no any text and graphic console created in this case.
The console[0] is NULL.

The vga_hw_screen_dump() should return before console_select().
What do you think?


---
 console.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/console.c b/console.c
index f6fe441..957948e 100644
--- a/console.c
+++ b/console.c
@@ -184,6 +184,9 @@ void vga_hw_screen_dump(const char *filename)
     console_select(0);
     if (consoles[0] && consoles[0]->hw_screen_dump) {
         consoles[0]->hw_screen_dump(consoles[0]->hw, filename);
+    } else {
+       fprintf(stderr,"no any console,could not screen dump \n");
+       return;
     }
 
     console_select(previous_active_console->index);
-- 
1.7.1