commit fa394ed625731c18f904578903718bf16617fe92
author Marc-André Lureau <marcandre.lureau@redhat.com> Sat Oct 22 12:52:59 2016 +0300
committer Paolo Bonzini <pbonzini@redhat.com> Mon Oct 24 15:27:21 2016 +0200
tree 224ba9825ba286e3fcffc48394a3a4c1afbc9531
parent c39860e6dc90f6ee2e82ee078f978c5d7f3df86a

char: make some qemu_chr_fe skip if no driver

In most cases, front ends do not care about the side effect of
CharBackend, so we can simply skip the checks and call the qemu_chr_fe
functions even without associated CharDriver.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-20-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

hw/char/escc.c

diff --git a/hw/char/escc.c b/hw/char/escc.c
index 4578a46..c71b0a8 100644
--- a/hw/char/escc.c
+++ b/hw/char/escc.c
@@ -599,9 +599,7 @@
         else
             ret = s->rx;
         trace_escc_mem_readb_data(CHN_C(s), ret);
-        if (s->chr.chr) {
-            qemu_chr_fe_accept_input(&s->chr);
-        }
+        qemu_chr_fe_accept_input(&s->chr);
         return ret;
     default:
         break;