s390/sclpconsole: handle char layer busy conditions
Handle busy conditions (errno=EAGAIN) in char layer by using
the new char layer in the sclp console.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
diff --git a/hw/char/sclpconsole.c b/hw/char/sclpconsole.c
index bcc7893..eb3988c 100644
--- a/hw/char/sclpconsole.c
+++ b/hw/char/sclpconsole.c
@@ -184,8 +184,6 @@
static ssize_t write_console_data(SCLPEvent *event, const uint8_t *buf,
size_t len)
{
- ssize_t ret = 0;
- const uint8_t *iov_offset;
SCLPConsole *scon = DO_UPCAST(SCLPConsole, event, event);
if (!scon->chr) {
@@ -193,21 +191,7 @@
return len;
}
- iov_offset = buf;
- while (len > 0) {
- ret = qemu_chr_fe_write(scon->chr, buf, len);
- if (ret == 0) {
- /* a pty doesn't seem to be connected - no error */
- len = 0;
- } else if (ret == -EAGAIN || (ret > 0 && ret < len)) {
- len -= ret;
- iov_offset += ret;
- } else {
- len = 0;
- }
- }
-
- return ret;
+ return qemu_chr_fe_write_all(scon->chr, buf, len);
}
static int write_event_data(SCLPEvent *event, EventBufferHeader *evt_buf_hdr)
