X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=linux_module%2Fiface-host-dev.c;h=23a3a09dc9c795b1f71017622a3bc7a9e4caaf54;hb=c5909621b389bb4a5a5f405168b25fdda4b0db35;hp=86b0e0c66365577d977c165a7b65bbd1a22ed363;hpb=1f8ac11d4550b1113d9a8c23e62b236cb8ad8404;p=palacios.git

diff --git a/linux_module/iface-host-dev.c b/linux_module/iface-host-dev.c
index 86b0e0c..23a3a09 100644
--- a/linux_module/iface-host-dev.c
+++ b/linux_module/iface-host-dev.c
@@ -301,6 +301,10 @@ static unsigned int host_dev_poll(struct file * filp,
 
     palacios_spinlock_lock_irqsave(&(dev->lock),f);
 
+
+    // register ourselves on the user wait queue
+    poll_wait(filp, &(dev->user_wait_queue), poll_tb);
+
     if (dev->waiting) { 
 	// Yes, we have a request if you want it!
 	palacios_spinlock_unlock_irqrestore(&(dev->lock),f);
@@ -310,9 +314,6 @@ static unsigned int host_dev_poll(struct file * filp,
 
     // No request yet, so we need to wait for one to show up.
 
-    // register ourselves on the user wait queue
-    poll_wait(filp, &(dev->user_wait_queue), poll_tb);
-
     palacios_spinlock_unlock_irqrestore(&(dev->lock),f);
 
     DEEP_DEBUG_PRINT("palacios: hostdev: poll delayed\n");
@@ -1322,6 +1323,11 @@ static int host_dev_init( void ) {
 }
 
 
+static int host_dev_deinit(void) { 
+    // nothing to do
+    return 0;
+}
+
 static int host_dev_guest_init(struct v3_guest * guest, void ** vm_data ) {
     struct palacios_host_dev * host_dev = palacios_alloc(sizeof(struct palacios_host_dev));
 
@@ -1357,7 +1363,7 @@ static int host_dev_guest_deinit(struct v3_guest * guest, void * vm_data) {
 static struct linux_ext host_dev_ext = {
     .name = "HOST_DEVICE_INTERFACE",
     .init = host_dev_init,
-    .deinit = NULL,
+    .deinit = host_dev_deinit,
     .guest_init = host_dev_guest_init,
     .guest_deinit = host_dev_guest_deinit
 };