From ca9cc28c62a2c2877186569f4ab0cf1034502a73 Mon Sep 17 00:00:00 2001
From: balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Mon, 14 Jan 2008 04:24:29 +0000
Subject: pthreads-based audio and miscellaneous audio clean-up (malc). ESD
 support (malc, Frederick Reeve).

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3917 c046a42c-6fe2-441c-8c8c-71466251a162
---
 hw/sb16.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'hw/sb16.c')

diff --git a/hw/sb16.c b/hw/sb16.c
index effbfbcf8d..c22de7a715 100644
--- a/hw/sb16.c
+++ b/hw/sb16.c
@@ -1193,6 +1193,12 @@ static int SB_read_DMA (void *opaque, int nchan, int dma_pos, int dma_len)
     SB16State *s = opaque;
     int till, copy, written, free;
 
+    if (s->block_size <= 0) {
+        dolog ("invalid block size=%d nchan=%d dma_pos=%d dma_len=%d\n",
+               s->block_size, nchan, dma_pos, dma_len);
+        return dma_pos;
+    }
+
     if (s->left_till_irq < 0) {
         s->left_till_irq = s->block_size;
     }
-- 
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