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monitor: Don't change VNC server when disabled (Jan Kiszka)

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[ As requested, broken out of the monitor rework series. ]

Avoid a segfault when the user issues 'change vnc' without having vnc
enabled on startup.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6616 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-02-11 21:00:38 +00:00
parent 322691a5c9
commit 452b4d88e5
1 changed files with 4 additions and 0 deletions
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4
vnc.c
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@ -2333,6 +2333,8 @@ void vnc_display_close(DisplayState *ds)
{ {
VncState *vs = ds ? (VncState *)ds->opaque : vnc_state; VncState *vs = ds ? (VncState *)ds->opaque : vnc_state;
if (!vs)
return;
if (vs->display) { if (vs->display) {
qemu_free(vs->display); qemu_free(vs->display);
vs->display = NULL; vs->display = NULL;
@ -2392,6 +2394,8 @@ int vnc_display_open(DisplayState *ds, const char *display)
int tls = 0, x509 = 0; int tls = 0, x509 = 0;
#endif #endif
if (!vnc_state)
return -1;
vnc_display_close(ds); vnc_display_close(ds);
if (strcmp(display, "none") == 0) if (strcmp(display, "none") == 0)
return 0; return 0;