mISDN: Make clearing B-channel a common function
Clearing B-channel is needed in every driver, so it makes sense
to have it as common function.
Signed-off-by: Karsten Keil <keil@b1-systems.de>
diff --git a/drivers/isdn/mISDN/hwchannel.c b/drivers/isdn/mISDN/hwchannel.c
index 0481a0c..e8049be 100644
--- a/drivers/isdn/mISDN/hwchannel.c
+++ b/drivers/isdn/mISDN/hwchannel.c
@@ -114,13 +114,14 @@
}
EXPORT_SYMBOL(mISDN_freedchannel);
-int
-mISDN_freebchannel(struct bchannel *ch)
+void
+mISDN_clear_bchannel(struct bchannel *ch)
{
if (ch->tx_skb) {
dev_kfree_skb(ch->tx_skb);
ch->tx_skb = NULL;
}
+ ch->tx_idx = 0;
if (ch->rx_skb) {
dev_kfree_skb(ch->rx_skb);
ch->rx_skb = NULL;
@@ -129,6 +130,16 @@
dev_kfree_skb(ch->next_skb);
ch->next_skb = NULL;
}
+ test_and_clear_bit(FLG_TX_BUSY, &ch->Flags);
+ test_and_clear_bit(FLG_TX_NEXT, &ch->Flags);
+ test_and_clear_bit(FLG_ACTIVE, &ch->Flags);
+}
+EXPORT_SYMBOL(mISDN_clear_bchannel);
+
+int
+mISDN_freebchannel(struct bchannel *ch)
+{
+ mISDN_clear_bchannel(ch);
skb_queue_purge(&ch->rqueue);
ch->rcount = 0;
flush_scheduled_work();