From: Andreas Eversberg <andreas@eversberg.eu>
Need to protect the complete pipeline.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
---
drivers/isdn/mISDN/dsp_core.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/isdn/mISDN/dsp_core.c b/drivers/isdn/mISDN/dsp_core.c
index 1c49368..621ea9b 100644
--- a/drivers/isdn/mISDN/dsp_core.c
+++ b/drivers/isdn/mISDN/dsp_core.c
@@ -704,6 +704,8 @@ dsp_function(struct mISDNchannel *ch, struct sk_buff *skb)
break;
}
+ spin_lock_irqsave(&dsp_lock, flags);
+
/* decrypt if enabled */
if (dsp->bf_enable)
dsp_bf_decrypt(dsp, skb->data, skb->len);
@@ -741,11 +743,11 @@ dsp_function(struct mISDNchannel *ch, struct sk_buff *skb)
}
}
/* we need to process receive data if software */
- spin_lock_irqsave(&dsp_lock, flags);
if (dsp->pcm_slot_tx < 0 && dsp->pcm_slot_rx < 0) {
/* process data from card at cmx */
dsp_cmx_receive(dsp, skb);
}
+
spin_unlock_irqrestore(&dsp_lock, flags);
if (dsp->rx_disabled) {
--
1.6.0.2
--
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