From 69049cc87dccb1e6fb54aa25c63033efac805dbd Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Mon, 10 Apr 2006 22:55:16 -0700 Subject: [PATCH] isdn4linux: Siemens Gigaset drivers: make some variables non-atomic With Hansjoerg Lipp Replace some atomic_t variables in the Gigaset drivers by non-atomic ones, using spinlocks instead to assure atomicity, as proposed in discussions on the linux-kernel mailing list. Signed-off-by: Hansjoerg Lipp Signed-off-by: Tilman Schmidt Cc: Karsten Keil Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/isdn/gigaset/asyncdata.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/isdn/gigaset/asyncdata.c') diff --git a/drivers/isdn/gigaset/asyncdata.c b/drivers/isdn/gigaset/asyncdata.c index ce60f6521b96..ce3cd77094b3 100644 --- a/drivers/isdn/gigaset/asyncdata.c +++ b/drivers/isdn/gigaset/asyncdata.c @@ -566,19 +566,22 @@ static struct sk_buff *iraw_encode(struct sk_buff *skb, int head, int tail) int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb) { unsigned len = skb->len; + unsigned long flags; if (bcs->proto2 == ISDN_PROTO_L2_HDLC) skb = HDLC_Encode(skb, HW_HDR_LEN, 0); else skb = iraw_encode(skb, HW_HDR_LEN, 0); if (!skb) { - dev_err(bcs->cs->dev, - "unable to allocate memory for encoding!\n"); + err("unable to allocate memory for encoding!\n"); return -ENOMEM; } skb_queue_tail(&bcs->squeue, skb); - tasklet_schedule(&bcs->cs->write_tasklet); + spin_lock_irqsave(&bcs->cs->lock, flags); + if (bcs->cs->connected) + tasklet_schedule(&bcs->cs->write_tasklet); + spin_unlock_irqrestore(&bcs->cs->lock, flags); return len; /* ok so far */ } -- cgit v1.2.3