From: Dmitry Torokhov <dtor@chromium.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>,
Arnd Bergmann <arnd@arndb.de>,
Kevin Cernekee <cernekee@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH] irqchip: bcm7120-l2: fix error handling of irq_of_parse_and_map
Date: Fri, 14 Nov 2014 14:16:14 -0800 [thread overview]
Message-ID: <20141114221614.GA37395@dtor-ws> (raw)
Return value of irq_of_parse_and_map() is unsigned int, with 0
indicating failure, so testing for negative result never works.
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
---
Not tested, found by casual code inspection.
drivers/irqchip/irq-bcm7120-l2.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-bcm7120-l2.c b/drivers/irqchip/irq-bcm7120-l2.c
index e7c6155..8eec8e1 100644
--- a/drivers/irqchip/irq-bcm7120-l2.c
+++ b/drivers/irqchip/irq-bcm7120-l2.c
@@ -102,9 +102,9 @@ static int bcm7120_l2_intc_init_one(struct device_node *dn,
unsigned int idx;
parent_irq = irq_of_parse_and_map(dn, irq);
- if (parent_irq < 0) {
+ if (!parent_irq) {
pr_err("failed to map interrupt %d\n", irq);
- return parent_irq;
+ return -EINVAL;
}
/* For multiple parent IRQs with multiple words, this looks like:
--
2.1.0.rc2.206.gedb03e5
--
Dmitry
next reply other threads:[~2014-11-14 22:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-14 22:16 Dmitry Torokhov [this message]
2014-11-15 19:41 ` [PATCH] irqchip: bcm7120-l2: fix error handling of irq_of_parse_and_map Florian Fainelli
2014-11-15 19:42 ` Kevin Cernekee
2014-11-26 6:36 ` Jason Cooper
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