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[Qemu-devel] [PATCH v3 6/6] ps2: output warning when event queue full


From: Amos Kong
Subject: [Qemu-devel] [PATCH v3 6/6] ps2: output warning when event queue full
Date: Wed, 20 Jun 2012 12:47:41 +0800

Event would be ignored if ps2 queue is full, this patch
added a warning in ignore path.

Signed-off-by: Amos Kong <address@hidden>
---
 hw/ps2.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/hw/ps2.c b/hw/ps2.c
index f93cd24..799c36b 100644
--- a/hw/ps2.c
+++ b/hw/ps2.c
@@ -137,8 +137,10 @@ void ps2_queue(void *opaque, int b)
     PS2State *s = (PS2State *)opaque;
     PS2Queue *q = &s->queue;
 
-    if (q->count >= PS2_QUEUE_SIZE)
+    if (q->count >= PS2_QUEUE_SIZE) {
+        fprintf(stderr, "ps2: warning: event queue full\n");
         return;
+    }
     q->data[q->wptr] = b;
     if (++q->wptr == PS2_QUEUE_SIZE)
         q->wptr = 0;
-- 
1.7.1




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