linux-kernel - [PATCH v2] genirq: devres: Fix testing return value of request_any_context

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Message-ID: <1431334978.17783.4.camel@ingics.com>
Date:	Mon, 11 May 2015 17:02:58 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Stephen Boyd <sboyd@...eaurora.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH v2] genirq: devres: Fix testing return value of
 request_any_context_irq()

request_any_context_irq() returns a negative value on failure.
It returns either IRQC_IS_HARDIRQ or IRQC_IS_NESTED on success.
So fix testing return value of request_any_context_irq().

Also fixup the return value of devm_request_any_context_irq() to make it
consistent with request_any_context_irq().

Fixes: 0668d3065128 ("genirq: Add devm_request_any_context_irq()")
Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
v2: Also fixup return value of devm_request_any_context_irq
 kernel/irq/devres.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/irq/devres.c b/kernel/irq/devres.c
index d5d0f73..74d90a7 100644
--- a/kernel/irq/devres.c
+++ b/kernel/irq/devres.c
@@ -104,7 +104,7 @@ int devm_request_any_context_irq(struct device *dev, unsigned int irq,
 		return -ENOMEM;
 
 	rc = request_any_context_irq(irq, handler, irqflags, devname, dev_id);
-	if (rc) {
+	if (rc < 0) {
 		devres_free(dr);
 		return rc;
 	}
@@ -113,7 +113,7 @@ int devm_request_any_context_irq(struct device *dev, unsigned int irq,
 	dr->dev_id = dev_id;
 	devres_add(dev, dr);
 
-	return 0;
+	return rc;
 }
 EXPORT_SYMBOL(devm_request_any_context_irq);
 
-- 
2.1.0



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