From: Jiri Slaby <jirislaby@gmail.com>
To: Andrew Morton <akpm@osdl.org>
Cc: <linux-kernel@vger.kernel.org>
Subject: [PATCH 4/5] Char: isicom, check card state in isr
Date: Sat, 16 Dec 2006 02:09:48 +0100 (CET) [thread overview]
Message-ID: <3240146701999923690@wsc.cz> (raw)
In-Reply-To: <2880031291415520798@wsc.cz>
isicom, check card state in isr
Check if the card really interrupted us by reading its IO space and
eventualy return IRQ_NONE.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
---
commit 601667e4ee38183358ea8f7980537bb8c09d8728
tree ccb1c085309ad35178f8d741e7c074308ae277ee
parent 405c17b09b010b41f6ec2388a11777e4048c7976
author Jiri Slaby <jirislaby@gmail.com> Fri, 15 Dec 2006 23:29:57 +0059
committer Jiri Slaby <jirislaby@gmail.com> Fri, 15 Dec 2006 23:29:57 +0059
drivers/char/isicom.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index 7968160..f4faa76 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -539,6 +539,11 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
return IRQ_NONE;
base = card->base;
+
+ /* did the card interrupt us? */
+ if (!(inw(base + 0x0e) & 0x02))
+ return IRQ_NONE;
+
spin_lock(&card->card_lock);
/*
next prev parent reply other threads:[~2006-12-16 1:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-16 1:09 [PATCH 1/5] Char: isicom, fix locking in isr Jiri Slaby
2006-12-16 1:09 ` Jiri Slaby [this message]
2006-12-16 1:09 ` [PATCH 2/5] Char: isicom, fix probe race Jiri Slaby
2006-12-18 23:27 ` Andrew Morton
2006-12-18 23:48 ` Jiri Slaby
2006-12-16 1:09 ` [PATCH 3/5] Char: isicom, augment card_reset Jiri Slaby
2006-12-16 1:09 ` [PATCH 5/5] Char: isicom, support higher rates Jiri Slaby
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