Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* serial port fixes (Paolo)
* Q35 modeling improvements (Paolo, Vasily)
* chardev cleanup improvements (Marc-André)
* iscsi bugfix (Peter L.)
* cpu_exec patch from multi-arch patches (Peter C.)
* pci-assign tweak (Lin Ma)

# gpg: Signature made Wed 29 Jun 2016 15:56:30 BST
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (35 commits)
  socket: unlink unix socket on remove
  socket: add listen feature
  char: clean up remaining chardevs when leaving
  vhost-user: disable chardev handlers on close
  vhost-user-test: fix g_cond_wait_until compat implementation
  vl: smp_parse: fix regression
  ich9: implement SCI_IRQ_SEL register
  ich9: implement ACPI_EN register
  serial: reinstate watch after migration
  serial: remove watch on reset
  char: change qemu_chr_fe_add_watch to return unsigned
  serial: separate serial_xmit and serial_watch_cb
  serial: simplify tsr_retry reset
  serial: make tsr_retry unsigned
  iscsi: fix assertion in is_sector_request_lun_aligned
  target-*: Don't redefine cpu_exec()
  pci-assign: Move "Invalid ROM" error message to pci-assign-load-rom.c
  vnc: generalize "VNC server running on ..." message
  scsi: esp: fix migration
  MC146818 RTC: add GPIO access to output IRQ
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 6 insertions, 3 deletions

diff --git a/hw/char/cadence_uart.c b/hw/char/cadence_uart.c
index 844542fd5a..e3bc52f7df 100644
--- a/hw/char/cadence_uart.c
+++ b/hw/char/cadence_uart.c
@@ -295,9 +295,12 @@ static gboolean cadence_uart_xmit(GIOChannel *chan, GIOCondition cond,
     }
 
     if (s->tx_count) {
-        int r = qemu_chr_fe_add_watch(s->chr, G_IO_OUT|G_IO_HUP,
-                                      cadence_uart_xmit, s);
-        assert(r);
+        guint r = qemu_chr_fe_add_watch(s->chr, G_IO_OUT|G_IO_HUP,
+                                        cadence_uart_xmit, s);
+        if (!r) {
+            s->tx_count = 0;
+            return FALSE;
+        }
     }
 
     uart_update_status(s);