diff options
| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2013-02-04 22:53:24 +0000 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2013-02-13 11:56:02 -0600 |
| commit | 760794f784f66e262a9ca32821ba202cdf3a3e4b (patch) | |
| tree | 74d65b3eaff82c79bd2a3c89dce78182bce534be | |
| parent | 7ce4106c2125eca8f7f61f460456a49074c13e56 (diff) | |
s390/sclpconsole: prevent char layer callback during initialization
Starting a qemu with an sclp console and pressing a key very early
can result in
"qemu-system-s390x: hw/s390x/sclpconsole.c:60: receive_from_chr_layer:
Assertion `scon->iov' failed."
Lets make sure that the init process is finished, since the iov is
allocated after CHR_EVENT_OPENED by also checking for scon->iov.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
| -rw-r--r-- | hw/s390x/sclpconsole.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/hw/s390x/sclpconsole.c b/hw/s390x/sclpconsole.c index adc0ee83f4..effe51110f 100644 --- a/hw/s390x/sclpconsole.c +++ b/hw/s390x/sclpconsole.c @@ -44,12 +44,9 @@ typedef struct SCLPConsole { /* Return number of bytes that fit into iov buffer */ static int chr_can_read(void *opaque) { - int can_read; SCLPConsole *scon = opaque; - can_read = SIZE_BUFFER_VT220 - scon->iov_data_len; - - return can_read; + return scon->iov ? SIZE_BUFFER_VT220 - scon->iov_data_len : 0; } /* Receive n bytes from character layer, save in iov buffer, |