linux-kernel - [PATCH 3/3] SPARC: Handle request

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Message-ID: <87y7mkq4so.fsf@sw.ru>
Date:	Mon, 26 Feb 2007 19:09:27 +0300
From:	Monakhov Dmitriy <dmonakhov@...nvz.org>
To:	linux-kernel@...r.kernel.org
CC:	sparclinux@...r.kernel.org, devel@...nvz.org
Subject: [PATCH 3/3] SPARC: Handle request_irq() failure



Signed-off-by: Monakhov Dmitriy <dmonakhov@...nvz.org>
---
 drivers/sbus/char/uctrl.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/drivers/sbus/char/uctrl.c b/drivers/sbus/char/uctrl.c
index 45cf5bc..6b96aa3 100644
--- a/drivers/sbus/char/uctrl.c
+++ b/drivers/sbus/char/uctrl.c
@@ -364,6 +364,7 @@ static int __init ts102_uctrl_init(void)
 	struct linux_prom_irqs tmp_irq[2];
         unsigned int vaddr[2] = { 0, 0 };
 	int tmpnode, uctrlnode = prom_getchild(prom_root_node);
+	int err;
 
 	tmpnode = prom_searchsiblings(uctrlnode, "obio");
 
@@ -389,7 +390,12 @@ static int __init ts102_uctrl_init(void)
 	if(!driver->irq) 
 		driver->irq = tmp_irq[0].pri;
 
-	request_irq(driver->irq, uctrl_interrupt, 0, "uctrl", driver);
+	err = request_irq(driver->irq, uctrl_interrupt, 0, "uctrl", driver);
+	if (err) {
+		printk(KERN_ERR "%s: unable to request irq  %d\n",
+				__FUNCTION__, driver->irq);
+		return -EBUSY;
+	}
 
 	if (misc_register(&uctrl_dev)) {
 		printk("%s: unable to get misc minor %d\n",
-- 
1.5.0.1


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