X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=linux_module%2Fiface-console.c;h=ab66d5aac61ee8bbc9ec7d6a06454037799de41a;hb=95b1b11f48e19834fca26e87f594d6794f1c6d55;hp=9e1354673e033c87b7f63c9029cd3c14457ca69b;hpb=ef34565873989f5b0240f7f9911c3666a69587c9;p=palacios.git

diff --git a/linux_module/iface-console.c b/linux_module/iface-console.c
index 9e13546..ab66d5a 100644
--- a/linux_module/iface-console.c
+++ b/linux_module/iface-console.c
@@ -209,6 +209,7 @@ static int console_connect(struct v3_guest * guest, unsigned int cmd,
     struct palacios_console * cons = priv_data;
     int cons_fd = 0;
     unsigned long flags;
+    int acquired = 0;
 
     if (cons->open == 0) {
 	printk("Attempted to connect to unopened console\n");
@@ -216,6 +217,16 @@ static int console_connect(struct v3_guest * guest, unsigned int cmd,
     }
 
     spin_lock_irqsave(&(cons->lock), flags);
+    if (cons->connected == 0) {
+	cons->connected = 1;
+	acquired = 1;
+    }
+    spin_unlock_irqrestore(&(cons->lock), flags);
+
+    if (acquired == 0) {
+	printk("Console already connected\n");
+	return -1;
+    }
 
     cons_fd = anon_inode_getfd("v3-cons", &cons_fops, cons, O_RDWR);
 
@@ -224,10 +235,8 @@ static int console_connect(struct v3_guest * guest, unsigned int cmd,
 	return cons_fd;
     }
 
-    cons->connected = 1;
-    
     v3_deliver_console_event(guest->v3_ctx, NULL);
-    spin_unlock_irqrestore(&(cons->lock), flags);
+
 
     printk("Console connected\n");