On 04/19/2012 03:27 PM, Stefan Weil wrote:
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<s...@weilnetz.de>
Applied. Thanks.
Regards,
Anthony Liguori
---
qemu-char.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/qemu-char.c b/qemu-char.c
index 287e195..43adcb2 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)
