[Xen-devel] [PATCH] mini-os: Do not use the same wait element twice

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>]

mini-os: Do not use the same wait element twice

To enqueue the kbdfront thread on two separate wait queues, we need two
different wait elements.

Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>

diff -r 8dada4c897c9 extras/mini-os/kernel.c
--- a/extras/mini-os/kernel.c   Sat Mar 06 13:31:42 2010 +0000
+++ b/extras/mini-os/kernel.c   Sun Apr 04 19:13:06 2010 +0200
@@ -353,6 +353,7 @@
 static void kbdfront_thread(void *p)
 {
     DEFINE_WAIT(w);
+    DEFINE_WAIT(w2);
     int x = WIDTH / 2, y = HEIGHT / 2, z = 0;
 
     kbd_dev = init_kbdfront(NULL, 1);
@@ -367,7 +368,7 @@
         int sleep = 1;
 
         add_waiter(w, kbdfront_queue);
-        add_waiter(w, fbfront_queue);
+        add_waiter(w2, fbfront_queue);
 
         while (kbdfront_receive(kbd_dev, &kbdevent, 1) != 0) {
             sleep = 0;

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