linux-kernel - [PATCH 4/8] mfd: htc-i2cpld: Pass the IRQF

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1431801737-9027-4-git-send-email-festevam@gmail.com>
Date:	Sat, 16 May 2015 15:42:13 -0300
From:	Fabio Estevam <festevam@...il.com>
To:	lee.jones@...aro.org
Cc:	Julia.Lawall@...6.fr, linux-kernel@...r.kernel.org,
	Fabio Estevam <fabio.estevam@...escale.com>
Subject: [PATCH 4/8] mfd: htc-i2cpld: Pass the IRQF_ONESHOT flag

From: Fabio Estevam <fabio.estevam@...escale.com>

Since commit 1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.

So pass the IRQF_ONESHOT flag in this case.

The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.

Signed-off-by: Fabio Estevam <fabio.estevam@...escale.com>
---
 drivers/mfd/htc-i2cpld.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/htc-i2cpld.c b/drivers/mfd/htc-i2cpld.c
index ebb9cf1..b54baad 100644
--- a/drivers/mfd/htc-i2cpld.c
+++ b/drivers/mfd/htc-i2cpld.c
@@ -564,7 +564,8 @@ static int htcpld_core_probe(struct platform_device *pdev)
 		htcpld->chained_irq = res->start;
 
 		/* Setup the chained interrupt handler */
-		flags = IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING;
+		flags = IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING |
+			IRQF_ONESHOT;
 		ret = request_threaded_irq(htcpld->chained_irq,
 					   NULL, htcpld_handler,
 					   flags, pdev->name, htcpld);
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/