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Commit 30735561 authored by Holger Schurig's avatar Holger Schurig Committed by John W. Linville
Browse files

libertas: fix interrupt issue 



This helps against lost interrupts and aids in debugging this.

Signed-off-by: default avatarHolger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: default avatarDan Williams <dcbw@redhat.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent d2c3cc00

drivers/net/wireless/libertas/if_cs.c

+5 −4
Original line number Diff line number Diff line
@@ -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;

}