linux-kernel - [patch] mailbox/omap: make mbox->irq signed for error handling

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Message-ID: <20131107074918.GG21844@elgon.mountain>
Date:	Thu, 7 Nov 2013 10:49:19 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Suman Anna <s-anna@...com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Omar Ramirez Luna <omar.ramirez@...itl.com>,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch] mailbox/omap: make mbox->irq signed for error handling

There is a bug in omap2_mbox_probe() where we try do:

		mbox->irq = platform_get_irq(pdev, info->irq_id);
		if (mbox->irq < 0) {

The problem is that mbox->irq is unsigned so the error handling doesn't
work.  I've changed it to a signed integer.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/drivers/mailbox/omap-mbox.h b/drivers/mailbox/omap-mbox.h
index 6cd38fc..86d7518 100644
--- a/drivers/mailbox/omap-mbox.h
+++ b/drivers/mailbox/omap-mbox.h
@@ -52,7 +52,7 @@ struct omap_mbox_queue {
 
 struct omap_mbox {
 	const char		*name;
-	unsigned int		irq;
+	int			irq;
 	struct omap_mbox_queue	*txq, *rxq;
 	struct omap_mbox_ops	*ops;
 	struct device		*dev;
--
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