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mISDN: Fixed missing spin lock on pipeline process

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Need to protect the complete pipeline.

Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andreas Eversberg 2009-05-22 11:04:47 +00:00 committed by David S. Miller
parent 44e095897d
commit ba3af34ec9
1 changed files with 3 additions and 1 deletions
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4
drivers/isdn/mISDN/dsp_core.c
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@ -704,6 +704,8 @@ dsp_function(struct mISDNchannel *ch, struct sk_buff *skb)
break; break;
} }
spin_lock_irqsave(&dsp_lock, flags);
/* decrypt if enabled */ /* decrypt if enabled */
if (dsp->bf_enable) if (dsp->bf_enable)
dsp_bf_decrypt(dsp, skb->data, skb->len); 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 */ /* 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) { if (dsp->pcm_slot_tx < 0 && dsp->pcm_slot_rx < 0) {
/* process data from card at cmx */ /* process data from card at cmx */
dsp_cmx_receive(dsp, skb); dsp_cmx_receive(dsp, skb);
} }
spin_unlock_irqrestore(&dsp_lock, flags); spin_unlock_irqrestore(&dsp_lock, flags);
if (dsp->rx_disabled) { if (dsp->rx_disabled) {