diff options
| author | Stefan Weil <sw@weilnetz.de> | 2012-04-19 22:27:14 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2012-04-24 09:50:31 -0500 |
| commit | ac3107340fbb9422ea63ee5d6729775965e121fd (patch) | |
| tree | 7892379e64c660b15cb20e0557bfe21cb578ddb6 | |
| parent | 023d3d67c7dc6e7f492de5b2336194c500d1779d (diff) | |
qemu-char: Fix crash when switching consoles
qemu-system-arm (and other system emulations) crashes with SDL when
the user switches consoles (Alt-Ctrl-F4).
We already check for NULL pointers in qemu_chr_fe_ioctl,
qemu_chr_be_can_write and other functions, so do this also
for s->chr_read in qemu_chr_be_write. This fixes the crash.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| -rw-r--r-- | qemu-char.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/qemu-char.c b/qemu-char.c index 74c60e11a0..a9fc50481a 100644 --- a/qemu-char.c +++ b/qemu-char.c @@ -160,7 +160,9 @@ int qemu_chr_be_can_write(CharDriverState *s) void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len) { - s->chr_read(s->handler_opaque, buf, len); + if (s->chr_read) { + s->chr_read(s->handler_opaque, buf, len); + } } int qemu_chr_fe_get_msgfd(CharDriverState *s) |