From 3073556171f1cf2044ff38c1fc3b9f6c805f0873 Mon Sep 17 00:00:00 2001 From: Holger Schurig Date: Thu, 5 Jun 2008 13:06:15 +0200 Subject: [PATCH] libertas: fix interrupt issue This helps against lost interrupts and aids in debugging this. Signed-off-by: Holger Schurig Acked-by: Dan Williams Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/if_cs.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index 873ab10a07..b5d0cd4c41 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -379,6 +379,8 @@ static irqreturn_t if_cs_interrupt(int irq, void *data) /* Ask card interrupt cause register if there is something for us */ cause = if_cs_read16(card, IF_CS_CARD_INT_CAUSE); + lbs_deb_cs("cause 0x%04x\n", cause); + if (cause == 0) { /* Not for us */ return IRQ_NONE; @@ -390,10 +392,6 @@ static irqreturn_t if_cs_interrupt(int irq, void *data) return IRQ_HANDLED; } - /* Clear interrupt cause */ - if_cs_write16(card, IF_CS_CARD_INT_CAUSE, cause & IF_CS_BIT_MASK); - lbs_deb_cs("cause 0x%04x\n", cause); - if (cause & IF_CS_BIT_RX) { struct sk_buff *skb; lbs_deb_cs("rx packet\n"); @@ -434,6 +432,9 @@ static irqreturn_t if_cs_interrupt(int irq, void *data) lbs_queue_event(priv, event >> 8 & 0xff); } + /* Clear interrupt cause */ + if_cs_write16(card, IF_CS_CARD_INT_CAUSE, cause & IF_CS_BIT_MASK); + lbs_deb_leave(LBS_DEB_CS); return IRQ_HANDLED; } -- 2.39.5