diff mbox

[1/2] qemu-ga: set O_NONBLOCK for serial channels

Message ID 1326482122-12619-2-git-send-email-lcapitulino@redhat.com
State New
Headers show

Commit Message

Luiz Capitulino Jan. 13, 2012, 7:15 p.m. UTC 
This fixes a bug when using -m isa-serial where qemu-ga will
hang on a read()'s when communicating to the host via isa-serial.

Original fix by Michael Roth.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
---
 qemu-ga.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff mbox

Patch

diff --git a/qemu-ga.c b/qemu-ga.c
index 29e4f64..647df82 100644
--- a/qemu-ga.c
+++ b/qemu-ga.c
@@ -504,7 +504,7 @@  static void init_guest_agent(GAState *s)
             exit(EXIT_FAILURE);
         }
     } else if (strcmp(s->method, "isa-serial") == 0) {
-        fd = qemu_open(s->path, O_RDWR | O_NOCTTY);
+        fd = qemu_open(s->path, O_RDWR | O_NOCTTY | O_NONBLOCK);
         if (fd == -1) {
             g_critical("error opening channel: %s", strerror(errno));
             exit(EXIT_FAILURE);